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90061516751 = 1913273572027
BaseRepresentation
bin101001111100000010…
…1011010111111001111
322121110112122002020112
41103320011122333033
52433421222014001
6105212414510235
76335544155453
oct1237005327717
9277415562215
1090061516751
1135216418588
121555550537b
1386537b071b
144505152663
15252197dcbb
hex14f815afcf

90061516751 has 8 divisors (see below), whose sum is σ = 94873063680. Its totient is φ = 85257116568.

The previous prime is 90061516733. The next prime is 90061516771. The reversal of 90061516751 is 15761516009.

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 90061516751 - 226 = 89994407887 is a prime.

It is a super-2 number, since 2×900615167512 (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 = 90061516699 and 90061516708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90061516771) 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, 1760801 + ... + 1811226.

It is an arithmetic number, because the mean of its divisors is an integer number (11859132960).

Almost surely, 290061516751 is an apocalyptic number.

90061516751 is a deficient number, since it is larger than the sum of its proper divisors (4811546929).

90061516751 is a wasteful number, since it uses less digits than its factorization.

90061516751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3573373.

The product of its (nonzero) digits is 56700, while the sum is 41.

The spelling of 90061516751 in words is "ninety billion, sixty-one million, five hundred sixteen thousand, seven hundred fifty-one".

Divisors: 1 19 1327 25213 3572027 67868513 4740079829 90061516751