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1372627444 = 221971741913
BaseRepresentation
bin101000111010000…
…1010000111110100
310112122211200212111
41101310022013310
510302343034234
6344112100404
746005066166
oct12164120764
93478750774
101372627444
116448a3351
12323834704
1318b4b66b6
14d0428936
1580789664
hex51d0a1f4

1372627444 has 12 divisors (see below), whose sum is σ = 2414292804. Its totient is φ = 682829504.

The previous prime is 1372627441. The next prime is 1372627453. The reversal of 1372627444 is 4447262731.

It can be written as a sum of positive squares in 2 ways, for example, as 776291044 + 596336400 = 27862^2 + 24420^2 .

It is a super-2 number, since 2×13726274442 = 3768212200043946272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1372627397 and 1372627406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372627441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 870169 + ... + 871744.

It is an arithmetic number, because the mean of its divisors is an integer number (201191067).

Almost surely, 21372627444 is an apocalyptic number.

It is an amenable number.

1372627444 is a deficient number, since it is larger than the sum of its proper divisors (1041665360).

1372627444 is a wasteful number, since it uses less digits than its factorization.

1372627444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742114 (or 1742112 counting only the distinct ones).

The product of its digits is 225792, while the sum is 40.

The square root of 1372627444 is about 37048.9870846694. The cubic root of 1372627444 is about 1111.3500992133.

The spelling of 1372627444 in words is "one billion, three hundred seventy-two million, six hundred twenty-seven thousand, four hundred forty-four".

Divisors: 1 2 4 197 394 788 1741913 3483826 6967652 343156861 686313722 1372627444