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51188952 = 2333376329
BaseRepresentation
bin1100001101000…
…1010011011000
310120022200001010
43003101103120
5101101021302
65025053520
71161045633
oct303212330
9116280033
1051188952
1126993021
12151872a0
13a7b3629
146b26c1a
15476216c
hex30d14d8

51188952 has 32 divisors (see below), whose sum is σ = 128372400. Its totient is φ = 17009664.

The previous prime is 51188933. The next prime is 51188953. The reversal of 51188952 is 25988115.

It is a self number, because there is not a number n which added to its sum of digits gives 51188952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51188953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4924 + ... + 11252.

Almost surely, 251188952 is an apocalyptic number.

It is an amenable number.

51188952 is an abundant number, since it is smaller than the sum of its proper divisors (77183448).

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

51188952 is a wasteful number, since it uses less digits than its factorization.

51188952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6675 (or 6671 counting only the distinct ones).

The product of its digits is 28800, while the sum is 39.

The square root of 51188952 is about 7154.6454838797. The cubic root of 51188952 is about 371.3003962920.

The spelling of 51188952 in words is "fifty-one million, one hundred eighty-eight thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 337 674 1011 1348 2022 2696 4044 6329 8088 12658 18987 25316 37974 50632 75948 151896 2132873 4265746 6398619 8531492 12797238 17062984 25594476 51188952