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90147796 = 221091991039
BaseRepresentation
bin1010101111110…
…00101111010100
320021121222112021
411113320233110
5141034212141
612540102524
72143146364
oct527705724
9207558467
1090147796
1146982412
1226234a44
13158a42bb
14bd889a4
157daa6d1
hex55f8bd4

90147796 has 24 divisors (see below), whose sum is σ = 160160000. Its totient is φ = 44393184.

The previous prime is 90147793. The next prime is 90147809. The reversal of 90147796 is 69774109.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90147793) 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, 86245 + ... + 87283.

Almost surely, 290147796 is an apocalyptic number.

It is an amenable number.

90147796 is a deficient number, since it is larger than the sum of its proper divisors (70012204).

90147796 is a wasteful number, since it uses less digits than its factorization.

90147796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351 (or 1349 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 90147796 is about 9494.6193183297. The cubic root of 90147796 is about 448.3856492741.

The spelling of 90147796 in words is "ninety million, one hundred forty-seven thousand, seven hundred ninety-six".

Divisors: 1 2 4 109 199 218 398 436 796 1039 2078 4156 21691 43382 86764 113251 206761 226502 413522 453004 827044 22536949 45073898 90147796