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47920806 = 232107139179
BaseRepresentation
bin1011011011001…
…1011010100110
310100011121222200
42312303122212
544231431211
64431035330
71121214543
oct266633246
9110147880
1047920806
112506067a
121406bb46
139c0ac0b
146515bca
154318b56
hex2db36a6

47920806 has 48 divisors (see below), whose sum is σ = 106142400. Its totient is φ = 15622704.

The previous prime is 47920787. The next prime is 47920837. The reversal of 47920806 is 60802974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 267625 + ... + 267803.

It is an arithmetic number, because the mean of its divisors is an integer number (2211300).

Almost surely, 247920806 is an apocalyptic number.

47920806 is an abundant number, since it is smaller than the sum of its proper divisors (58221594).

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

47920806 is a wasteful number, since it uses less digits than its factorization.

47920806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 47920806 is about 6922.4855362796. The cubic root of 47920806 is about 363.2241404239.

The spelling of 47920806 in words is "forty-seven million, nine hundred twenty thousand, eight hundred six".

Divisors: 1 2 3 6 9 18 107 139 179 214 278 321 358 417 537 642 834 963 1074 1251 1611 1926 2502 3222 14873 19153 24881 29746 38306 44619 49762 57459 74643 89238 114918 133857 149286 172377 223929 267714 344754 447858 2662267 5324534 7986801 15973602 23960403 47920806