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1379424156 = 2231119154713
BaseRepresentation
bin101001000111000…
…0101011110011100
310120010122000012120
41102032011132130
510311113033111
6344513502540
746116624525
oct12216053634
93503560176
101379424156
11648715870
12325b71a50
1318ca26216
14d12b784c
158117d406
hex5238579c

1379424156 has 48 divisors (see below), whose sum is σ = 3529709568. Its totient is φ = 415811200.

The previous prime is 1379424077. The next prime is 1379424157. The reversal of 1379424156 is 6514249731.

It is a super-2 number, since 2×13794241562 = 3805622004312624672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379424157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2145 + ... + 52568.

It is an arithmetic number, because the mean of its divisors is an integer number (73535616).

Almost surely, 21379424156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1379424156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1764854784).

1379424156 is an abundant number, since it is smaller than the sum of its proper divisors (2150285412).

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

1379424156 is a wasteful number, since it uses less digits than its factorization.

1379424156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54922 (or 54920 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 1379424156 is about 37140.5998336053. The cubic root of 1379424156 is about 1113.1814029674.

It can be divided in two parts, 13794 and 24156, that added together give a triangular number (37950 = T275).

The spelling of 1379424156 in words is "one billion, three hundred seventy-nine million, four hundred twenty-four thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 191 382 573 764 1146 2101 2292 4202 6303 8404 12606 25212 54713 109426 164139 218852 328278 601843 656556 1203686 1805529 2407372 3611058 7222116 10450183 20900366 31350549 41800732 62701098 114952013 125402196 229904026 344856039 459808052 689712078 1379424156