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51029132 = 22711433853
BaseRepresentation
bin1100001010101…
…0010010001100
310120000112210212
43002222102030
5101030413012
65021421552
71156511660
oct302522214
9116015725
1051029132
1126893a40
121510a8b8
13a75896b
146ac48a0
15472eb22
hex30aa48c

51029132 has 48 divisors (see below), whose sum is σ = 113955072. Its totient is φ = 19414080.

The previous prime is 51029093. The next prime is 51029137. The reversal of 51029132 is 23192015.

It is a junction number, because it is equal to n+sod(n) for n = 51029098 and 51029107.

It is not an unprimeable number, because it can be changed into a prime (51029137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11318 + ... + 15170.

It is an arithmetic number, because the mean of its divisors is an integer number (2374064).

Almost surely, 251029132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51029132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56977536).

51029132 is an abundant number, since it is smaller than the sum of its proper divisors (62925940).

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

51029132 is a wasteful number, since it uses less digits than its factorization.

51029132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918 (or 3916 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 51029132 is about 7143.4677853267. The cubic root of 51029132 is about 370.9135739281.

The spelling of 51029132 in words is "fifty-one million, twenty-nine thousand, one hundred thirty-two".

Divisors: 1 2 4 7 11 14 22 28 43 44 77 86 154 172 301 308 473 602 946 1204 1892 3311 3853 6622 7706 13244 15412 26971 42383 53942 84766 107884 165679 169532 296681 331358 593362 662716 1159753 1186724 1822469 2319506 3644938 4639012 7289876 12757283 25514566 51029132