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130921484 = 2267488513
BaseRepresentation
bin1111100110110…
…11010000001100
3100010100111111212
413303123100030
5232003441414
620554033552
73146546201
oct763332014
9303314455
10130921484
11679a1281
1237a188b8
132117c045
141355dca8
15b76183e
hex7cdb40c

130921484 has 12 divisors (see below), whose sum is σ = 232532664. Its totient is φ = 64483584.

The previous prime is 130921477. The next prime is 130921507. The reversal of 130921484 is 484129031.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 130921484.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243989 + ... + 244524.

It is an arithmetic number, because the mean of its divisors is an integer number (19377722).

Almost surely, 2130921484 is an apocalyptic number.

It is an amenable number.

130921484 is a deficient number, since it is larger than the sum of its proper divisors (101611180).

130921484 is a wasteful number, since it uses less digits than its factorization.

130921484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488584 (or 488582 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 130921484 is about 11442.0926407716. The cubic root of 130921484 is about 507.7738210268.

The spelling of 130921484 in words is "one hundred thirty million, nine hundred twenty-one thousand, four hundred eighty-four".

Divisors: 1 2 4 67 134 268 488513 977026 1954052 32730371 65460742 130921484