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90182428 = 2273220801
BaseRepresentation
bin1010110000000…
…01001100011100
320021200202000221
411120001030130
5141041314203
612540531124
72143352350
oct530011434
9207622027
1090182428
11469a6436
1226250aa4
13158b6cab
14bd97460
157db5abd
hex560131c

90182428 has 12 divisors (see below), whose sum is σ = 180364912. Its totient is φ = 38649600.

The previous prime is 90182423. The next prime is 90182429. The reversal of 90182428 is 82428109.

90182428 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 90182393 and 90182402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90182423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1610373 + ... + 1610428.

Almost surely, 290182428 is an apocalyptic number.

It is an amenable number.

90182428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90182428 is a wasteful number, since it uses less digits than its factorization.

90182428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220812 (or 3220810 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 90182428 is about 9496.4429130070. The cubic root of 90182428 is about 448.4430605639.

The spelling of 90182428 in words is "ninety million, one hundred eighty-two thousand, four hundred twenty-eight".

Divisors: 1 2 4 7 14 28 3220801 6441602 12883204 22545607 45091214 90182428