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438473130073464 = 23318269713753061
BaseRepresentation
bin110001110110010011111101…
…1001010010101110101111000
32010111111121210100001021221110
41203230213323022111311320
5424432420432244322324
64152315435233440320
7161233431626532303
oct14354477312256570
92114447710037843
10438473130073464
11117790456a56922
12412170441100a0
1315a87ab99613b5
147a3c2d9a33b3a
1535a5a5ba61329
hex18ec9fb295d78

438473130073464 has 16 divisors (see below), whose sum is σ = 1096182825183720. Its totient is φ = 146157710024480.

The previous prime is 438473130073457. The next prime is 438473130073501. The reversal of 438473130073464 is 464370031374834.

It is a congruent number.

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, 9134856876507 + ... + 9134856876554.

Almost surely, 2438473130073464 is an apocalyptic number.

It is an amenable number.

438473130073464 is an abundant number, since it is smaller than the sum of its proper divisors (657709695110256).

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

438473130073464 is a wasteful number, since it uses less digits than its factorization.

438473130073464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18269713753070 (or 18269713753066 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 57.

The spelling of 438473130073464 in words is "four hundred thirty-eight trillion, four hundred seventy-three billion, one hundred thirty million, seventy-three thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 24 18269713753061 36539427506122 54809141259183 73078855012244 109618282518366 146157710024488 219236565036732 438473130073464