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47720352 = 2535383113
BaseRepresentation
bin1011011000001…
…0011110100000
310022210110000110
42312002132200
544204022402
64422451320
71116421251
oct266023640
9108713013
1047720352
1124a34009
1213b93b40
139b6a8c4
1464a2b28
1542c956c
hex2d827a0

47720352 has 96 divisors (see below), whose sum is σ = 130310208. Its totient is φ = 15282176.

The previous prime is 47720347. The next prime is 47720353. The reversal of 47720352 is 25302774.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (47720353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422248 + ... + 422360.

It is an arithmetic number, because the mean of its divisors is an integer number (1357398).

Almost surely, 247720352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47720352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65155104).

47720352 is an abundant number, since it is smaller than the sum of its proper divisors (82589856).

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

47720352 is a wasteful number, since it uses less digits than its factorization.

47720352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 47720352 is about 6907.9918934521. The cubic root of 47720352 is about 362.7169738700.

The spelling of 47720352 in words is "forty-seven million, seven hundred twenty thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 53 83 96 106 113 159 166 212 226 249 318 332 339 424 452 498 636 664 678 848 904 996 1272 1328 1356 1696 1808 1992 2544 2656 2712 3616 3984 4399 5088 5424 5989 7968 8798 9379 10848 11978 13197 17596 17967 18758 23956 26394 28137 35192 35934 37516 47912 52788 56274 70384 71868 75032 95824 105576 112548 140768 143736 150064 191648 211152 225096 287472 300128 422304 450192 497087 574944 900384 994174 1491261 1988348 2982522 3976696 5965044 7953392 11930088 15906784 23860176 47720352