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140226972 = 22311685581
BaseRepresentation
bin10000101101110…
…11000110011100
3100202212021020120
420112323012130
5241344230342
621525314540
73321623664
oct1026730634
9322767216
10140226972
1172177666
123ab65a50
1323089752
14148a31a4
15c49daec
hex85bb19c

140226972 has 12 divisors (see below), whose sum is σ = 327196296. Its totient is φ = 46742320.

The previous prime is 140226971. The next prime is 140226979. The reversal of 140226972 is 279622041.

140226972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140226971) 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, 5842779 + ... + 5842802.

It is an arithmetic number, because the mean of its divisors is an integer number (27266358).

Almost surely, 2140226972 is an apocalyptic number.

140226972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140226972 is an abundant number, since it is smaller than the sum of its proper divisors (186969324).

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

140226972 is a wasteful number, since it uses less digits than its factorization.

140226972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11685588 (or 11685586 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 140226972 is about 11841.7469994929. The cubic root of 140226972 is about 519.5298660052.

The spelling of 140226972 in words is "one hundred forty million, two hundred twenty-six thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 11685581 23371162 35056743 46742324 70113486 140226972