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90537048961 = 727946113163
BaseRepresentation
bin101010001010001101…
…1011011101110000001
322122200200102121210121
41110110123123232001
52440404441031321
6105331523100241
76353410134652
oct1242433335601
9278620377717
1090537048961
113543a892a07
1215668811681
1386cb179928
14454c379529
15254d5b2441
hex15146dbb81

90537048961 has 8 divisors (see below), whose sum is σ = 90678055104. Its totient is φ = 90396089520.

The previous prime is 90537048929. The next prime is 90537048967. The reversal of 90537048961 is 16984073509.

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 90537048961 - 25 = 90537048929 is a prime.

It is a super-2 number, since 2×905370489612 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90537048899 and 90537048908.

It is not an unprimeable number, because it can be changed into a prime (90537048967) 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, 6871566 + ... + 6884728.

It is an arithmetic number, because the mean of its divisors is an integer number (11334756888).

Almost surely, 290537048961 is an apocalyptic number.

It is an amenable number.

90537048961 is a deficient number, since it is larger than the sum of its proper divisors (141006143).

90537048961 is a wasteful number, since it uses less digits than its factorization.

90537048961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23351.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 90537048961 in words is "ninety billion, five hundred thirty-seven million, forty-eight thousand, nine hundred sixty-one".

Divisors: 1 727 9461 13163 6878147 9569501 124535143 90537048961