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49807940 = 22571327367
BaseRepresentation
bin1011111000000…
…0001001000100
310110201111122112
42332000021010
5100222323230
64535320152
71143234440
oct276001104
9113644575
1049807940
112612a496
1214820058
13a41bb70
146887820
15458cd95
hex2f80244

49807940 has 48 divisors (see below), whose sum is σ = 128739072. Its totient is φ = 15762816.

The previous prime is 49807939. The next prime is 49807951. The reversal of 49807940 is 4970894.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11864 + ... + 15503.

It is an arithmetic number, because the mean of its divisors is an integer number (2682064).

Almost surely, 249807940 is an apocalyptic number.

It is an amenable number.

49807940 is an abundant number, since it is smaller than the sum of its proper divisors (78931132).

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

49807940 is a wasteful number, since it uses less digits than its factorization.

49807940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27396 (or 27394 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 49807940 is about 7057.4740523788. The cubic root of 49807940 is about 367.9308412097.

The spelling of 49807940 in words is "forty-nine million, eight hundred seven thousand, nine hundred forty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 364 455 910 1820 27367 54734 109468 136835 191569 273670 355771 383138 547340 711542 766276 957845 1423084 1778855 1915690 2490397 3557710 3831380 4980794 7115420 9961588 12451985 24903970 49807940