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283940916 = 22373380249
BaseRepresentation
bin10000111011001…
…001100000110100
3201210021200201020
4100323021200310
51040142102131
644101501140
710015313040
oct2073114064
9653250636
10283940916
11136306016
127b1117b0
1346a9739c
14299d3020
1519dda996
hex10ec9834

283940916 has 24 divisors (see below), whose sum is σ = 757176000. Its totient is φ = 81125952.

The previous prime is 283940903. The next prime is 283940929. The reversal of 283940916 is 619049382.

It is an interprime number because it is at equal distance from previous prime (283940903) and next prime (283940929).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1690041 + ... + 1690208.

It is an arithmetic number, because the mean of its divisors is an integer number (31549000).

Almost surely, 2283940916 is an apocalyptic number.

It is an amenable number.

283940916 is an abundant number, since it is smaller than the sum of its proper divisors (473235084).

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

283940916 is a wasteful number, since it uses less digits than its factorization.

283940916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380263 (or 3380261 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 283940916 is about 16850.5464599816. The cubic root of 283940916 is about 657.2682589649.

The spelling of 283940916 in words is "two hundred eighty-three million, nine hundred forty thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 3380249 6760498 10140747 13520996 20281494 23661743 40562988 47323486 70985229 94646972 141970458 283940916