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49372420 = 22517145213
BaseRepresentation
bin1011110001010…
…1110100000100
310102220101020011
42330111310010
5100114404140
64522120004
71136441626
oct274256404
9112811204
1049372420
1125962259
1214650004
13a2c8866
1467b2c16
154503cea
hex2f15d04

49372420 has 24 divisors (see below), whose sum is σ = 109781784. Its totient is φ = 18587136.

The previous prime is 49372417. The next prime is 49372441. The reversal of 49372420 is 2427394.

It can be written as a sum of positive squares in 4 ways, for example, as 18369796 + 31002624 = 4286^2 + 5568^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 72267 + ... + 72946.

It is an arithmetic number, because the mean of its divisors is an integer number (4574241).

Almost surely, 249372420 is an apocalyptic number.

It is an amenable number.

49372420 is an abundant number, since it is smaller than the sum of its proper divisors (60409364).

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

49372420 is a wasteful number, since it uses less digits than its factorization.

49372420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145239 (or 145237 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 49372420 is about 7026.5510743180. The cubic root of 49372420 is about 366.8553060560.

The spelling of 49372420 in words is "forty-nine million, three hundred seventy-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 145213 290426 580852 726065 1452130 2468621 2904260 4937242 9874484 12343105 24686210 49372420