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142901415 = 34523329
BaseRepresentation
bin10001000010010…
…00000010100111
3100221220010220000
420201020002213
5243040321130
622102512343
73353433126
oct1041100247
9327803800
10142901415
1173733a48
123ba356b3
13237b4b67
1414d9babd
15c82b260
hex88480a7

142901415 has 80 divisors (see below), whose sum is σ = 277041600. Its totient is φ = 70386624.

The previous prime is 142901411. The next prime is 142901459. The reversal of 142901415 is 514109241.

It is not a de Polignac number, because 142901415 - 22 = 142901411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142901411) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4927621 + ... + 4927649.

It is an arithmetic number, because the mean of its divisors is an integer number (3463020).

Almost surely, 2142901415 is an apocalyptic number.

142901415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142901415 is a deficient number, since it is larger than the sum of its proper divisors (134140185).

142901415 is an frugal number, since it uses more digits than its factorization.

142901415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 142901415 is about 11954.1379864882. The cubic root of 142901415 is about 522.8119547656.

The spelling of 142901415 in words is "one hundred forty-two million, nine hundred one thousand, four hundred fifteen".

Divisors: 1 3 5 9 15 23 27 29 45 69 81 87 115 135 145 207 261 345 405 435 529 621 667 783 1035 1305 1587 1863 2001 2349 2645 3105 3335 3915 4761 6003 7935 9315 10005 11745 12167 14283 15341 18009 23805 30015 36501 42849 46023 54027 60835 71415 76705 90045 109503 138069 182505 214245 230115 270135 328509 352843 414207 547515 690345 985527 1058529 1242621 1642545 1764215 2071035 3175587 4927635 5292645 6213105 9526761 15877935 28580283 47633805 142901415