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34130431020 = 2235781262931
BaseRepresentation
bin11111110010010101…
…010000110000101100
310021002121102112112210
4133302111100300230
51024344342243040
623402421330420
72315532606540
oct376225206054
9107077375483
1034130431020
1113524813a94
126746266a10
1332ac02351a
14191ac31a20
15d4b565480
hex7f2550c2c

34130431020 has 48 divisors (see below), whose sum is σ = 109217380608. Its totient is φ = 7801241280.

The previous prime is 34130431007. The next prime is 34130431033. The reversal of 34130431020 is 2013403143.

It is an interprime number because it is at equal distance from previous prime (34130431007) and next prime (34130431033).

It is a super-2 number, since 2×341304310202 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40631046 + ... + 40631885.

It is an arithmetic number, because the mean of its divisors is an integer number (2275362096).

Almost surely, 234130431020 is an apocalyptic number.

34130431020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

34130431020 is an abundant number, since it is smaller than the sum of its proper divisors (75086949588).

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

34130431020 is a wasteful number, since it uses less digits than its factorization.

34130431020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81262950 (or 81262948 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 34130431020 its reverse (2013403143), we get a palindrome (36143834163).

The spelling of 34130431020 in words is "thirty-four billion, one hundred thirty million, four hundred thirty-one thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 81262931 162525862 243788793 325051724 406314655 487577586 568840517 812629310 975155172 1137681034 1218943965 1625258620 1706521551 2275362068 2437887930 2844202585 3413043102 4875775860 5688405170 6826086204 8532607755 11376810340 17065215510 34130431020