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1371940488 = 2332179106451
BaseRepresentation
bin101000111000110…
…0010011010001000
310112121112210112200
41101301202122020
510302204043423
6344045240200
745666205332
oct12161423210
93477483480
101371940488
11644474216
12323563060
1318b305b09
14d02ca452
15806a0d43
hex51c62688

1371940488 has 48 divisors (see below), whose sum is σ = 3736465200. Its totient is φ = 454754400.

The previous prime is 1371940421. The next prime is 1371940489. The reversal of 1371940488 is 8840491731.

It is a happy number.

1371940488 is a `hidden beast` number, since 13 + 71 + 94 + 0 + 488 = 666.

It is a super-2 number, since 2×13719404882 = 3764441405227356288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1371940489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40338 + ... + 66113.

It is an arithmetic number, because the mean of its divisors is an integer number (77843025).

Almost surely, 21371940488 is an apocalyptic number.

1371940488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1371940488 is an abundant number, since it is smaller than the sum of its proper divisors (2364524712).

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

1371940488 is a wasteful number, since it uses less digits than its factorization.

1371940488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106642 (or 106635 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 1371940488 is about 37039.7150097028. The cubic root of 1371940488 is about 1111.1646699190.

The spelling of 1371940488 in words is "one billion, three hundred seventy-one million, nine hundred forty thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 179 358 537 716 1074 1432 1611 2148 3222 4296 6444 12888 106451 212902 319353 425804 638706 851608 958059 1277412 1916118 2554824 3832236 7664472 19054729 38109458 57164187 76218916 114328374 152437832 171492561 228656748 342985122 457313496 685970244 1371940488