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561484952 = 23728973461
BaseRepresentation
bin100001011101111…
…001010010011000
31110010112101112222
4201131321102120
52122220004302
6131414323212
716625354240
oct4135712230
91403471488
10561484952
11268a41a56
12138059508
138c431c22
14547dcb20
1534460da2
hex21779498

561484952 has 32 divisors (see below), whose sum is σ = 1203945120. Its totient is φ = 240483840.

The previous prime is 561484949. The next prime is 561484981. The reversal of 561484952 is 259484165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160502 + ... + 163962.

It is an arithmetic number, because the mean of its divisors is an integer number (37623285).

Almost surely, 2561484952 is an apocalyptic number.

It is an amenable number.

561484952 is an abundant number, since it is smaller than the sum of its proper divisors (642460168).

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

561484952 is a wasteful number, since it uses less digits than its factorization.

561484952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6371 (or 6367 counting only the distinct ones).

The product of its digits is 345600, while the sum is 44.

The square root of 561484952 is about 23695.6736979559. The cubic root of 561484952 is about 824.9849777491.

The spelling of 561484952 in words is "five hundred sixty-one million, four hundred eighty-four thousand, nine hundred fifty-two".

Divisors: 1 2 4 7 8 14 28 56 2897 3461 5794 6922 11588 13844 20279 23176 24227 27688 40558 48454 81116 96908 162232 193816 10026517 20053034 40106068 70185619 80212136 140371238 280742476 561484952