Search a number
-
+
49102357 = 314767503
BaseRepresentation
bin1011101101001…
…1111000010101
310102101122202211
42323103320111
5100032233412
64512233421
71134235363
oct273237025
9112348684
1049102357
1125798367
121453b871
13a232965
146742633
15449dca7
hex2ed3e15

49102357 has 16 divisors (see below), whose sum is σ = 52641792. Its totient is φ = 45722160.

The previous prime is 49102351. The next prime is 49102369. The reversal of 49102357 is 75320194.

It is a cyclic number.

It is not a de Polignac number, because 49102357 - 211 = 49100309 is a prime.

It is a super-2 number, since 2×491023572 = 4822082925910898, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49102351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97368 + ... + 97870.

It is an arithmetic number, because the mean of its divisors is an integer number (3290112).

Almost surely, 249102357 is an apocalyptic number.

49102357 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

49102357 is a deficient number, since it is larger than the sum of its proper divisors (3539435).

49102357 is a wasteful number, since it uses less digits than its factorization.

49102357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 49102357 is about 7007.3074001359. The cubic root of 49102357 is about 366.1851934863.

The spelling of 49102357 in words is "forty-nine million, one hundred two thousand, three hundred fifty-seven".

Divisors: 1 31 47 67 503 1457 2077 3149 15593 23641 33701 97619 732871 1044731 1583947 49102357