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1381830412 = 22345457603
BaseRepresentation
bin101001001011101…
…0000111100001100
310120022011020222011
41102113100330030
510312222033122
6345041231004
746146236044
oct12227207414
93508136864
101381830412
1164a009706
12326932464
13190389541
14d1742724
15814a6377
hex525d0f0c

1381830412 has 6 divisors (see below), whose sum is σ = 2418203228. Its totient is φ = 690915204.

The previous prime is 1381830403. The next prime is 1381830433. The reversal of 1381830412 is 2140381831.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172728798 + ... + 172728805.

Almost surely, 21381830412 is an apocalyptic number.

It is an amenable number.

1381830412 is a deficient number, since it is larger than the sum of its proper divisors (1036372816).

1381830412 is a wasteful number, since it uses less digits than its factorization.

1381830412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345457607 (or 345457605 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 1381830412 is about 37172.9795953997. The cubic root of 1381830412 is about 1113.8283017517.

The spelling of 1381830412 in words is "one billion, three hundred eighty-one million, eight hundred thirty thousand, four hundred twelve".

Divisors: 1 2 4 345457603 690915206 1381830412