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142975754 = 2107668111
BaseRepresentation
bin10001000010110…
…10001100001010
3100222000220212022
420201122030022
5243100211004
622104244442
73354162635
oct1041321412
9328026768
10142975754
1173784889
123ba70722
132380c94c
1414dbac1c
15c8432be
hex885a30a

142975754 has 8 divisors (see below), whose sum is σ = 216468288. Its totient is φ = 70819660.

The previous prime is 142975747. The next prime is 142975757. The reversal of 142975754 is 457579241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (142975757) 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, 333842 + ... + 334269.

It is an arithmetic number, because the mean of its divisors is an integer number (27058536).

Almost surely, 2142975754 is an apocalyptic number.

142975754 is a deficient number, since it is larger than the sum of its proper divisors (73492534).

142975754 is a wasteful number, since it uses less digits than its factorization.

142975754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668220.

The product of its digits is 352800, while the sum is 44.

The square root of 142975754 is about 11957.2469239370. The cubic root of 142975754 is about 522.9025966963.

The spelling of 142975754 in words is "one hundred forty-two million, nine hundred seventy-five thousand, seven hundred fifty-four".

Divisors: 1 2 107 214 668111 1336222 71487877 142975754