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47013890 = 2571161057
BaseRepresentation
bin1011001101011…
…0000000000010
310021110112221012
42303112000002
544013421030
64355400522
71110416510
oct263260002
9107415835
1047013890
11245a1260
12138b3142
139981191
14635b4b0
1541da095
hex2cd6002

47013890 has 32 divisors (see below), whose sum is σ = 105508224. Its totient is φ = 14653440.

The previous prime is 47013877. The next prime is 47013907. The reversal of 47013890 is 9831074.

It is a Curzon 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, 29759 + ... + 31298.

It is an arithmetic number, because the mean of its divisors is an integer number (3297132).

Almost surely, 247013890 is an apocalyptic number.

47013890 is an abundant number, since it is smaller than the sum of its proper divisors (58494334).

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

47013890 is a wasteful number, since it uses less digits than its factorization.

47013890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61082.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 47013890 is about 6856.6675579322. The cubic root of 47013890 is about 360.9181552884.

The spelling of 47013890 in words is "forty-seven million, thirteen thousand, eight hundred ninety".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 61057 122114 305285 427399 610570 671627 854798 1343254 2136995 3358135 4273990 4701389 6716270 9402778 23506945 47013890