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90668151 = 3271439177
BaseRepresentation
bin1010110011101…
…11110001110111
320022121102022200
411121313301313
5141202340101
612555155543
72150444430
oct531676167
9208542280
1090668151
11471a8362
1226445bb3
1315a270c2
14c082487
157e5e986
hex5677c77

90668151 has 12 divisors (see below), whose sum is σ = 149674512. Its totient is φ = 51810336.

The previous prime is 90668129. The next prime is 90668153. The reversal of 90668151 is 15186609.

It is not a de Polignac number, because 90668151 - 215 = 90635383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90668153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 719526 + ... + 719651.

It is an arithmetic number, because the mean of its divisors is an integer number (12472876).

Almost surely, 290668151 is an apocalyptic number.

90668151 is a deficient number, since it is larger than the sum of its proper divisors (59006361).

90668151 is a wasteful number, since it uses less digits than its factorization.

90668151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439190 (or 1439187 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 90668151 is about 9521.9825141616. The cubic root of 90668151 is about 449.2467249481.

The spelling of 90668151 in words is "ninety million, six hundred sixty-eight thousand, one hundred fifty-one".

Divisors: 1 3 7 9 21 63 1439177 4317531 10074239 12952593 30222717 90668151