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10121517120 = 26351113174337
BaseRepresentation
bin10010110110100101…
…00001100001000000
3222010101102100021110
421123102201201000
5131212102021440
64352203123320
7505551322161
oct113322414100
928111370243
1010121517120
114324372690
121b65813540
13c53c25ab0
146c0355768
153e38b3080
hex25b4a1840

10121517120 has 448 divisors, whose sum is σ = 39984005376. Its totient is φ = 2131230720.

The previous prime is 10121517101. The next prime is 10121517127. The reversal of 10121517120 is 2171512101.

It is not an unprimeable number, because it can be changed into a prime (10121517127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2331592 + ... + 2335928.

It is an arithmetic number, because the mean of its divisors is an integer number (89250012).

Almost surely, 210121517120 is an apocalyptic number.

10121517120 is a gapful number since it is divisible by the number (10) 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 10121517120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19992002688).

10121517120 is an abundant number, since it is smaller than the sum of its proper divisors (29862488256).

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

10121517120 is a wasteful number, since it uses less digits than its factorization.

10121517120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4398 (or 4388 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 21.

The spelling of 10121517120 in words is "ten billion, one hundred twenty-one million, five hundred seventeen thousand, one hundred twenty".