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1004139454 = 279280447
BaseRepresentation
bin111011110110011…
…111001110111110
32120222110120101011
4323312133032332
54024024430304
6243350105434
733612021163
oct7366371676
92528416334
101004139454
114758a091a
1224034b27a
13130059376
149750806a
155d24cc04
hex3bd9f3be

1004139454 has 12 divisors (see below), whose sum is σ = 1525535424. Its totient is φ = 495708252.

The previous prime is 1004139449. The next prime is 1004139457. The reversal of 1004139454 is 4549314001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004139457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27742 + ... + 52705.

It is an arithmetic number, because the mean of its divisors is an integer number (127127952).

Almost surely, 21004139454 is an apocalyptic number.

1004139454 is a deficient number, since it is larger than the sum of its proper divisors (521395970).

1004139454 is an frugal number, since it uses more digits than its factorization.

1004139454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80607 (or 80528 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1004139454 is about 31688.1595237085. The cubic root of 1004139454 is about 1001.3779184686.

The spelling of 1004139454 in words is "one billion, four million, one hundred thirty-nine thousand, four hundred fifty-four".

Divisors: 1 2 79 158 6241 12482 80447 160894 6355313 12710626 502069727 1004139454