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21310125150 = 2352415875903
BaseRepresentation
bin10011110110001011…
…101011010001011110
32001000010202112002110
4103312023223101132
5322120343001100
613442325534450
71353041034516
oct236613532136
961003675073
1021310125150
119046012486
124168874426
132017c49412
1410622c0846
1584acab250
hex4f62eb45e

21310125150 has 96 divisors (see below), whose sum is σ = 54239528448. Its totient is φ = 5533715200.

The previous prime is 21310125131. The next prime is 21310125211. The reversal of 21310125150 is 5152101312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3607099 + ... + 3613001.

It is an arithmetic number, because the mean of its divisors is an integer number (564995088).

Almost surely, 221310125150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21310125150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27119764224).

21310125150 is an abundant number, since it is smaller than the sum of its proper divisors (32929403298).

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

21310125150 is a wasteful number, since it uses less digits than its factorization.

21310125150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6546 (or 6541 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 21310125150 its reverse (5152101312), we get a palindrome (26462226462).

The spelling of 21310125150 in words is "twenty-one billion, three hundred ten million, one hundred twenty-five thousand, one hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 41 50 75 82 123 150 205 246 410 587 615 1025 1174 1230 1761 2050 2935 3075 3522 5870 5903 6150 8805 11806 14675 17610 17709 24067 29350 29515 35418 44025 48134 59030 72201 88050 88545 120335 144402 147575 177090 240670 242023 295150 361005 442725 484046 601675 722010 726069 885450 1203350 1210115 1452138 1805025 2420230 3465061 3610050 3630345 6050575 6930122 7260690 10395183 12101150 17325305 18151725 20790366 34650610 36303450 51975915 86626525 103951830 142067501 173253050 259879575 284135002 426202503 519759150 710337505 852405006 1420675010 2131012515 3551687525 4262025030 7103375050 10655062575 21310125150