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90966877 = 1633131783
BaseRepresentation
bin1010110110000…
…00101101011101
320100011121002121
411123000231131
5141241420002
613005422541
72153130361
oct533005535
9210147077
1090966877
1147391841
122656aa51
1315b00071
14c11d2a1
157ebd237
hex56c0b5d

90966877 has 8 divisors (see below), whose sum is σ = 91868864. Its totient is φ = 90069408.

The previous prime is 90966871. The next prime is 90966901. The reversal of 90966877 is 77866909.

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

It is a 9-Lehmer number, since φ(90966877) divides (90966877-1)9.

It is a cyclic number.

It is not a de Polignac number, because 90966877 - 27 = 90966749 is a prime.

It is a super-2 number, since 2×909668772 = 16549945422266258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90966871) 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, 50128 + ... + 51910.

It is an arithmetic number, because the mean of its divisors is an integer number (11483608).

Almost surely, 290966877 is an apocalyptic number.

It is an amenable number.

90966877 is a deficient number, since it is larger than the sum of its proper divisors (901987).

90966877 is a wasteful number, since it uses less digits than its factorization.

90966877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 90966877 is about 9537.6557392265. The cubic root of 90966877 is about 449.7395645296.

The spelling of 90966877 in words is "ninety million, nine hundred sixty-six thousand, eight hundred seventy-seven".

Divisors: 1 163 313 1783 51019 290629 558079 90966877