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47990796 = 22372174801
BaseRepresentation
bin1011011100010…
…0100000001100
310100022011222220
42313010200030
544241201141
64432335340
71121625600
oct267044014
9110264886
1047990796
11250a9217
12140a4550
139c33a29
146533500
15432e766
hex2dc480c

47990796 has 72 divisors (see below), whose sum is σ = 137951856. Its totient is φ = 12902400.

The previous prime is 47990791. The next prime is 47990809. The reversal of 47990796 is 69709974.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (47990791) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7596 + ... + 12396.

It is an arithmetic number, because the mean of its divisors is an integer number (1915998).

Almost surely, 247990796 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 47990796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68975928).

47990796 is an abundant number, since it is smaller than the sum of its proper divisors (89961060).

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

47990796 is a wasteful number, since it uses less digits than its factorization.

47990796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4839 (or 4830 counting only the distinct ones).

The product of its (nonzero) digits is 857304, while the sum is 51.

The square root of 47990796 is about 6927.5389569457. The cubic root of 47990796 is about 363.4008882233.

The spelling of 47990796 in words is "forty-seven million, nine hundred ninety thousand, seven hundred ninety-six".

Divisors: 1 2 3 4 6 7 12 14 17 21 28 34 42 49 51 68 84 98 102 119 147 196 204 238 294 357 476 588 714 833 1428 1666 2499 3332 4801 4998 9602 9996 14403 19204 28806 33607 57612 67214 81617 100821 134428 163234 201642 235249 244851 326468 403284 470498 489702 571319 705747 940996 979404 1142638 1411494 1713957 2285276 2822988 3427914 3999233 6855828 7998466 11997699 15996932 23995398 47990796