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90267040 = 2553118199
BaseRepresentation
bin1010110000101…
…01110110100000
320021212001002201
411120111312200
5141102021130
612542422544
72144154133
oct530256640
9207761081
1090267040
1146a53a66
1226291a54
1315916666
14bdba21a
157dd0bca
hex5615da0

90267040 has 48 divisors (see below), whose sum is σ = 220147200. Its totient is φ = 34940160.

The previous prime is 90267011. The next prime is 90267049. The reversal of 90267040 is 4076209.

It is not an unprimeable number, because it can be changed into a prime (90267049) 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, 4140 + ... + 14059.

It is an arithmetic number, because the mean of its divisors is an integer number (4586400).

Almost surely, 290267040 is an apocalyptic number.

It is an amenable number.

90267040 is an abundant number, since it is smaller than the sum of its proper divisors (129880160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90267040 is a wasteful number, since it uses less digits than its factorization.

90267040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18245 (or 18237 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 90267040 is about 9500.8967997763. The cubic root of 90267040 is about 448.5832645357.

The spelling of 90267040 in words is "ninety million, two hundred sixty-seven thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 31 32 40 62 80 124 155 160 248 310 496 620 992 1240 2480 4960 18199 36398 72796 90995 145592 181990 291184 363980 564169 582368 727960 1128338 1455920 2256676 2820845 2911840 4513352 5641690 9026704 11283380 18053408 22566760 45133520 90267040