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142463720 = 2357508799
BaseRepresentation
bin10000111110111…
…01001011101000
3100221001220111002
420133131023220
5242432314340
622045254132
73346631060
oct1037351350
9327056432
10142463720
1173465113
123b864348
1323690879
1414cc63a0
15c791715
hex87dd2e8

142463720 has 32 divisors (see below), whose sum is σ = 366336000. Its totient is φ = 48844608.

The previous prime is 142463683. The next prime is 142463749. The reversal of 142463720 is 27364241.

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, 254120 + ... + 254679.

It is an arithmetic number, because the mean of its divisors is an integer number (11448000).

Almost surely, 2142463720 is an apocalyptic number.

142463720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142463720 is an abundant number, since it is smaller than the sum of its proper divisors (223872280).

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

142463720 is a wasteful number, since it uses less digits than its factorization.

142463720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508817 (or 508813 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 142463720 is about 11935.8166876004. The cubic root of 142463720 is about 522.2776325357.

The spelling of 142463720 in words is "one hundred forty-two million, four hundred sixty-three thousand, seven hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 508799 1017598 2035196 2543995 3561593 4070392 5087990 7123186 10175980 14246372 17807965 20351960 28492744 35615930 71231860 142463720