Search a number
-
+
1372740252 = 223138799617
BaseRepresentation
bin101000111010010…
…0101101010011100
310112200001102121120
41101310211222130
510302410142002
6344114330540
746006046112
oct12164455234
93480042546
101372740252
11644970084
12323889a50
1318b525b50
14d0457ab2
15807accbc
hex51d25a9c

1372740252 has 24 divisors (see below), whose sum is σ = 3449450256. Its totient is φ = 422381568.

The previous prime is 1372740247. The next prime is 1372740277. The reversal of 1372740252 is 2520472731.

It is a super-2 number, since 2×13727402522 = 3768831598922047008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4399653 + ... + 4399964.

It is an arithmetic number, because the mean of its divisors is an integer number (143727094).

Almost surely, 21372740252 is an apocalyptic number.

1372740252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1372740252 is an abundant number, since it is smaller than the sum of its proper divisors (2076710004).

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

1372740252 is a wasteful number, since it uses less digits than its factorization.

1372740252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8799637 (or 8799635 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 1372740252 is about 37050.5094701814. The cubic root of 1372740252 is about 1111.3805434411.

The spelling of 1372740252 in words is "one billion, three hundred seventy-two million, seven hundred forty thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 8799617 17599234 26398851 35198468 52797702 105595404 114395021 228790042 343185063 457580084 686370126 1372740252