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16231252250401 = 312227923501449
BaseRepresentation
bin1110110000110010001000…
…0001100100111100100001
32010110200200212200022012121
43230030202001210330201
54111413101034003101
654304311230224241
73263445363506236
oct354144201447441
963420625608177
1016231252250401
1151986a9824991
1219a1885655081
139097a6459536
1440184d89978d
151d232ad860a1
hexec322064f21

16231252250401 has 8 divisors (see below), whose sum is σ = 16755593792000. Its totient is φ = 15706957756320.

The previous prime is 16231252250387. The next prime is 16231252250489. The reversal of 16231252250401 is 10405225213261.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16231252250401 - 211 = 16231252248353 is a prime.

It is a super-2 number, since 2×162312522504012 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16231252254401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11060076 + ... + 12441373.

It is an arithmetic number, because the mean of its divisors is an integer number (2094449224000).

Almost surely, 216231252250401 is an apocalyptic number.

It is an amenable number.

16231252250401 is a deficient number, since it is larger than the sum of its proper divisors (524341541599).

16231252250401 is a wasteful number, since it uses less digits than its factorization.

16231252250401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23523759.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 16231252250401 its reverse (10405225213261), we get a palindrome (26636477463662).

The spelling of 16231252250401 in words is "sixteen trillion, two hundred thirty-one billion, two hundred fifty-two million, two hundred fifty thousand, four hundred one".

Divisors: 1 31 22279 690649 23501449 728544919 523588782271 16231252250401