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1900000372 = 221632914111
BaseRepresentation
bin111000100111111…
…1011010001110100
311220102012000112011
41301033323101310
512342400002442
6512311334004
765040510454
oct16117732164
94812160464
101900000372
11895556446
12450381304
13243833a9a
141404a7d64
15b1c0d117
hex713fb474

1900000372 has 12 divisors (see below), whose sum is σ = 3345400576. Its totient is φ = 944171640.

The previous prime is 1900000303. The next prime is 1900000381. The reversal of 1900000372 is 2730000091.

It is a super-2 number, since 2×19000003722 = 7220002827200276768, which contains 22 as substring.

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, 1456404 + ... + 1457707.

Almost surely, 21900000372 is an apocalyptic number.

It is an amenable number.

1900000372 is a deficient number, since it is larger than the sum of its proper divisors (1445400204).

1900000372 is a wasteful number, since it uses less digits than its factorization.

1900000372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914278 (or 2914276 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 1900000372 is about 43588.9937025392. The cubic root of 1900000372 is about 1238.5624104627.

The spelling of 1900000372 in words is "one billion, nine hundred million, three hundred seventy-two", and thus it is an aban number.

Divisors: 1 2 4 163 326 652 2914111 5828222 11656444 475000093 950000186 1900000372