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1331930352 = 24334779967
BaseRepresentation
bin100111101100011…
…1010010011110000
310102211021001221210
41033120322103300
510211433232402
6340055520120
745002135604
oct11730722360
93384231853
101331930352
11623926a95
12312089040
13182c3778c
14c8c73504
157bdeb06c
hex4f63a4f0

1331930352 has 40 divisors (see below), whose sum is σ = 3450779136. Its totient is φ = 442691776.

The previous prime is 1331930351. The next prime is 1331930371. The reversal of 1331930352 is 2530391331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331930351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23328 + ... + 56639.

Almost surely, 21331930352 is an apocalyptic number.

1331930352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331930352 is an abundant number, since it is smaller than the sum of its proper divisors (2118848784).

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

1331930352 is a wasteful number, since it uses less digits than its factorization.

1331930352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80325 (or 80319 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 30.

The square root of 1331930352 is about 36495.6209975937. The cubic root of 1331930352 is about 1100.2562356243.

The spelling of 1331930352 in words is "one billion, three hundred thirty-one million, nine hundred thirty thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 347 694 1041 1388 2082 2776 4164 5552 8328 16656 79967 159934 239901 319868 479802 639736 959604 1279472 1919208 3838416 27748549 55497098 83245647 110994196 166491294 221988392 332982588 443976784 665965176 1331930352