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1372022140 = 22568601107
BaseRepresentation
bin101000111000111…
…0110010101111100
310112121200221112211
41101301312111330
510302214202030
6344051110204
745666665356
oct12161662574
93477627484
101372022140
1164451a5a5
123235a2364
1318b334028
14d030c0d6
15806ba12a
hex51c7657c

1372022140 has 12 divisors (see below), whose sum is σ = 2881246536. Its totient is φ = 548808848.

The previous prime is 1372022107. The next prime is 1372022189. The reversal of 1372022140 is 412202731.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34300534 + ... + 34300573.

It is an arithmetic number, because the mean of its divisors is an integer number (240103878).

Almost surely, 21372022140 is an apocalyptic number.

1372022140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1372022140 is an abundant number, since it is smaller than the sum of its proper divisors (1509224396).

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

1372022140 is a wasteful number, since it uses less digits than its factorization.

1372022140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68601116 (or 68601114 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1372022140 is about 37040.8172156069. The cubic root of 1372022140 is about 1111.1867133965.

Adding to 1372022140 its reverse (412202731), we get a palindrome (1784224871).

The spelling of 1372022140 in words is "one billion, three hundred seventy-two million, twenty-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 68601107 137202214 274404428 343005535 686011070 1372022140