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47057620 = 2252352881
BaseRepresentation
bin1011001110000…
…0101011010100
310021112202220211
42303200223110
544021320440
64400335204
71110661141
oct263405324
9107482824
1047057620
11246210a5
1213914504
13999805c
14636d3c8
1541e7eea
hex2ce0ad4

47057620 has 12 divisors (see below), whose sum is σ = 98821044. Its totient is φ = 18823040.

The previous prime is 47057603. The next prime is 47057629. The reversal of 47057620 is 2675074.

It can be written as a sum of positive squares in 2 ways, for example, as 8964036 + 38093584 = 2994^2 + 6172^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47057629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1176421 + ... + 1176460.

It is an arithmetic number, because the mean of its divisors is an integer number (8235087).

Almost surely, 247057620 is an apocalyptic number.

It is an amenable number.

47057620 is an abundant number, since it is smaller than the sum of its proper divisors (51763424).

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

47057620 is a wasteful number, since it uses less digits than its factorization.

47057620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352890 (or 2352888 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 47057620 is about 6859.8556836132. The cubic root of 47057620 is about 361.0300233622.

It can be divided in two parts, 470576 and 20, that added together give a square (470596 = 6862).

The spelling of 47057620 in words is "forty-seven million, fifty-seven thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 2352881 4705762 9411524 11764405 23528810 47057620