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90414865 = 537488729
BaseRepresentation
bin1010110001110…
…01111100010001
320022010112212201
411120321330101
5141121233430
612545523201
72145341122
oct530717421
9208115781
1090414865
1147045032
1226343501
1315968a28
14c018049
157e0e8ca
hex5639f11

90414865 has 8 divisors (see below), whose sum is σ = 111430440. Its totient is φ = 70376832.

The previous prime is 90414859. The next prime is 90414889. The reversal of 90414865 is 56841409.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17943696 + 72471169 = 4236^2 + 8513^2 .

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 90414865 - 29 = 90414353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244180 + ... + 244549.

It is an arithmetic number, because the mean of its divisors is an integer number (13928805).

Almost surely, 290414865 is an apocalyptic number.

It is an amenable number.

90414865 is a deficient number, since it is larger than the sum of its proper divisors (21015575).

90414865 is a wasteful number, since it uses less digits than its factorization.

90414865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488771.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 90414865 is about 9508.6731461335. The cubic root of 90414865 is about 448.8280037585.

The spelling of 90414865 in words is "ninety million, four hundred fourteen thousand, eight hundred sixty-five".

Divisors: 1 5 37 185 488729 2443645 18082973 90414865