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1461338972 = 221721490279
BaseRepresentation
bin101011100011010…
…0100001101011100
310202211202201012122
41113012210031130
510443100321342
6401001322112
751133114322
oct12706441534
93684681178
101461338972
1168a984665
12349496338
131a39a7022
14dc11bd12
158845e4d2
hex571a435c

1461338972 has 12 divisors (see below), whose sum is σ = 2707775280. Its totient is φ = 687688896.

The previous prime is 1461338951. The next prime is 1461338981. The reversal of 1461338972 is 2798331641.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

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, 10745072 + ... + 10745207.

It is an arithmetic number, because the mean of its divisors is an integer number (225647940).

Almost surely, 21461338972 is an apocalyptic number.

It is an amenable number.

1461338972 is a deficient number, since it is larger than the sum of its proper divisors (1246436308).

1461338972 is a wasteful number, since it uses less digits than its factorization.

1461338972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21490300 (or 21490298 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 1461338972 is about 38227.4635831361. The cubic root of 1461338972 is about 1134.7938901357.

The spelling of 1461338972 in words is "one billion, four hundred sixty-one million, three hundred thirty-eight thousand, nine hundred seventy-two".

Divisors: 1 2 4 17 34 68 21490279 42980558 85961116 365334743 730669486 1461338972