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210202431131120 = 245107161315224029
BaseRepresentation
bin101111110010110110010001…
…001111010000110111110000
31000120021011012211202020211112
4233302312101033100313300
5210022424034332143440
62023021355212132452
762163424125132011
oct5762662117206760
91016234184666745
10210202431131120
1160a8239445333a
121b6aa780a67128
13903a009301c9c
1439c9bcda79008
151947caaacb965
hexbf2d913d0df0

210202431131120 has 80 divisors (see below), whose sum is σ = 493593987828960. Its totient is φ = 83243523597312.

The previous prime is 210202431131053. The next prime is 210202431131129. The reversal of 210202431131120 is 21131134202012.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210202431131129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6195266 + ... + 21419294.

It is an arithmetic number, because the mean of its divisors is an integer number (6169924847862).

Almost surely, 2210202431131120 is an apocalyptic number.

210202431131120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210202431131120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246796993914480).

210202431131120 is an abundant number, since it is smaller than the sum of its proper divisors (283391556697840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210202431131120 is a wasteful number, since it uses less digits than its factorization.

210202431131120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15225762 (or 15225756 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 210202431131120 its reverse (21131134202012), we get a palindrome (231333565333132).

The spelling of 210202431131120 in words is "two hundred ten trillion, two hundred two billion, four hundred thirty-one million, one hundred thirty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 107 214 428 535 856 1070 1613 1712 2140 3226 4280 6452 8065 8560 12904 16130 25808 32260 64520 129040 172591 345182 690364 862955 1380728 1725910 2761456 3451820 6903640 13807280 15224029 30448058 60896116 76120145 121792232 152240290 243584464 304480580 608961160 1217922320 1628971103 3257942206 6515884412 8144855515 13031768824 16289711030 24556358777 26063537648 32579422060 49112717554 65158844120 98225435108 122781793885 130317688240 196450870216 245563587770 392901740432 491127175540 982254351080 1964508702160 2627530389139 5255060778278 10510121556556 13137651945695 21020243113112 26275303891390 42040486226224 52550607782780 105101215565560 210202431131120