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142952480 = 2551181223
BaseRepresentation
bin10001000010101…
…00100000100000
3100221222201221022
420201110200200
5243043434410
622103545012
73354035036
oct1041244040
9327881838
10142952480
1173769350
123ba5b168
1323802188
1414db2556
15c83b455
hex8854820

142952480 has 48 divisors (see below), whose sum is σ = 368432064. Its totient is φ = 51982080.

The previous prime is 142952449. The next prime is 142952483. The reversal of 142952480 is 84259241.

It is a self number, because there is not a number n which added to its sum of digits gives 142952480.

It is not an unprimeable number, because it can be changed into a prime (142952483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38852 + ... + 42371.

It is an arithmetic number, because the mean of its divisors is an integer number (7675668).

Almost surely, 2142952480 is an apocalyptic number.

142952480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142952480 is an abundant number, since it is smaller than the sum of its proper divisors (225479584).

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

142952480 is a wasteful number, since it uses less digits than its factorization.

142952480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81249 (or 81241 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 142952480 is about 11956.2736669917. The cubic root of 142952480 is about 522.8742219658.

The spelling of 142952480 in words is "one hundred forty-two million, nine hundred fifty-two thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 160 176 220 352 440 880 1760 81223 162446 324892 406115 649784 812230 893453 1299568 1624460 1786906 2599136 3248920 3573812 4467265 6497840 7147624 8934530 12995680 14295248 17869060 28590496 35738120 71476240 142952480