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142364740 = 22571016891
BaseRepresentation
bin10000111110001…
…01000001000100
3100220212212201011
420133011001010
5242421132430
622043212004
73346036360
oct1037050104
9326785634
10142364740
11733a7811
123b817004
13236577bb
1414c9c2a0
15c77222a
hex87c5044

142364740 has 24 divisors (see below), whose sum is σ = 341675712. Its totient is φ = 48810720.

The previous prime is 142364737. The next prime is 142364743. The reversal of 142364740 is 47463241.

It is an interprime number because it is at equal distance from previous prime (142364737) and next prime (142364743).

It is not an unprimeable number, because it can be changed into a prime (142364743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508306 + ... + 508585.

It is an arithmetic number, because the mean of its divisors is an integer number (14236488).

Almost surely, 2142364740 is an apocalyptic number.

142364740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142364740 is an abundant number, since it is smaller than the sum of its proper divisors (199310972).

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

142364740 is a wasteful number, since it uses less digits than its factorization.

142364740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016907 (or 1016905 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 142364740 is about 11931.6696233176. The cubic root of 142364740 is about 522.1566496478.

The spelling of 142364740 in words is "one hundred forty-two million, three hundred sixty-four thousand, seven hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1016891 2033782 4067564 5084455 7118237 10168910 14236474 20337820 28472948 35591185 71182370 142364740