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90274873 = 1321132911
BaseRepresentation
bin1010110000101…
…11110000111001
320021212102211211
411120113300321
5141102243443
612542523121
72144216023
oct530276071
9207772754
1090274873
1146a59937
12262964a1
131591a0b0
14bdbd013
157dd319d
hex5617c39

90274873 has 8 divisors (see below), whose sum is σ = 97682816. Its totient is φ = 82933200.

The previous prime is 90274859. The next prime is 90274963. The reversal of 90274873 is 37847209.

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 90274873 - 213 = 90266681 is a prime.

It is a super-2 number, since 2×902748732 = 16299105390332258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90274853) 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, 13713 + ... + 19198.

It is an arithmetic number, because the mean of its divisors is an integer number (12210352).

Almost surely, 290274873 is an apocalyptic number.

It is an amenable number.

90274873 is a deficient number, since it is larger than the sum of its proper divisors (7407943).

90274873 is a wasteful number, since it uses less digits than its factorization.

90274873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33135.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 90274873 is about 9501.3090150779. The cubic root of 90274873 is about 448.5962395599.

The spelling of 90274873 in words is "ninety million, two hundred seventy-four thousand, eight hundred seventy-three".

Divisors: 1 13 211 2743 32911 427843 6944221 90274873