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47899380 = 22351942017
BaseRepresentation
bin1011011010111…
…0001011110100
310100010112121010
42312232023310
544230240010
64430352220
71121065224
oct266561364
9110115533
1047899380
1125046571
121405b670
139c01239
14650c084
154312620
hex2dae2f4

47899380 has 48 divisors (see below), whose sum is σ = 141180480. Its totient is φ = 12100608.

The previous prime is 47899367. The next prime is 47899391. The reversal of 47899380 is 8399874.

It is a congruent number.

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, 19869 + ... + 22148.

It is an arithmetic number, because the mean of its divisors is an integer number (2941260).

Almost surely, 247899380 is an apocalyptic number.

It is an amenable number.

47899380 is an abundant number, since it is smaller than the sum of its proper divisors (93281100).

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

47899380 is a wasteful number, since it uses less digits than its factorization.

47899380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42048 (or 42046 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 47899380 is about 6920.9377977265. The cubic root of 47899380 is about 363.1699983143.

The spelling of 47899380 in words is "forty-seven million, eight hundred ninety-nine thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 190 228 285 380 570 1140 42017 84034 126051 168068 210085 252102 420170 504204 630255 798323 840340 1260510 1596646 2394969 2521020 3193292 3991615 4789938 7983230 9579876 11974845 15966460 23949690 47899380