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90874744 = 2319159473
BaseRepresentation
bin1010110101010…
…10001101111000
320022222220201021
411122222031320
5141230442434
613003432224
72152264642
oct532521570
9208886637
1090874744
11473295a4
1226525674
1315a9a14c
14c0d7892
157ea0cb4
hex56aa378

90874744 has 16 divisors (see below), whose sum is σ = 171285120. Its totient is φ = 45198720.

The previous prime is 90874709. The next prime is 90874759. The reversal of 90874744 is 44747809.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 90874744.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28209 + ... + 31264.

It is an arithmetic number, because the mean of its divisors is an integer number (10705320).

Almost surely, 290874744 is an apocalyptic number.

It is an amenable number.

90874744 is a deficient number, since it is larger than the sum of its proper divisors (80410376).

90874744 is a wasteful number, since it uses less digits than its factorization.

90874744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59670 (or 59666 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 90874744 is about 9532.8245551882. The cubic root of 90874744 is about 449.5876782843.

It can be divided in two parts, 9087 and 4744, that added together give a palindrome (13831).

The spelling of 90874744 in words is "ninety million, eight hundred seventy-four thousand, seven hundred forty-four".

Divisors: 1 2 4 8 191 382 764 1528 59473 118946 237892 475784 11359343 22718686 45437372 90874744