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428908092 = 223137260893
BaseRepresentation
bin11001100100001…
…001111000111100
31002220001210021220
4121210021320330
51334300024332
6110320553340
713425441624
oct3144117074
91086053256
10428908092
1120011aaa8
12bb782850
136ab23592
1440d6b884
15279c3d2c
hex19909e3c

428908092 has 24 divisors (see below), whose sum is σ = 1008094416. Its totient is φ = 141925248.

The previous prime is 428908063. The next prime is 428908097. The reversal of 428908092 is 290809824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428908097) 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, 128803 + ... + 132090.

It is an arithmetic number, because the mean of its divisors is an integer number (42003934).

Almost surely, 2428908092 is an apocalyptic number.

It is an amenable number.

428908092 is an abundant number, since it is smaller than the sum of its proper divisors (579186324).

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

428908092 is a wasteful number, since it uses less digits than its factorization.

428908092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261037 (or 261035 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 428908092 is about 20710.0963783368. The cubic root of 428908092 is about 754.1448100921.

The spelling of 428908092 in words is "four hundred twenty-eight million, nine hundred eight thousand, ninety-two".

Divisors: 1 2 3 4 6 12 137 274 411 548 822 1644 260893 521786 782679 1043572 1565358 3130716 35742341 71484682 107227023 142969364 214454046 428908092