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90704141 = 1122925849
BaseRepresentation
bin1010110100000…
…00100100001101
320022200020200122
411122000210031
5141210013031
613000034325
72150654363
oct532004415
9208606618
1090704141
1147222400
12264629a5
1315a3a5b8
14c091633
157e6a47b
hex568090d

90704141 has 12 divisors (see below), whose sum is σ = 103141500. Its totient is φ = 79611840.

The previous prime is 90704137. The next prime is 90704149. The reversal of 90704141 is 14140709.

It can be written as a sum of positive squares in 2 ways, for example, as 18028516 + 72675625 = 4246^2 + 8525^2 .

It is not a de Polignac number, because 90704141 - 22 = 90704137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90704141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90704149) 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, 9416 + ... + 16433.

It is an arithmetic number, because the mean of its divisors is an integer number (8595125).

Almost surely, 290704141 is an apocalyptic number.

It is an amenable number.

90704141 is a deficient number, since it is larger than the sum of its proper divisors (12437359).

90704141 is a wasteful number, since it uses less digits than its factorization.

90704141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25900 (or 25889 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 90704141 is about 9523.8721641988. The cubic root of 90704141 is about 449.3061587207.

The spelling of 90704141 in words is "ninety million, seven hundred four thousand, one hundred forty-one".

Divisors: 1 11 29 121 319 3509 25849 284339 749621 3127729 8245831 90704141