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142727772 = 223111956909
BaseRepresentation
bin10001000000111…
…01101001011100
3100221120022200210
420200131221130
5243014242042
622055052420
73352110645
oct1040355134
9327508623
10142727772
1173625540
123b971110
1323753b05
1414d546cc
15c7e4a9c
hex881da5c

142727772 has 48 divisors (see below), whose sum is σ = 382435200. Its totient is φ = 40973760.

The previous prime is 142727749. The next prime is 142727789. The reversal of 142727772 is 277727241.

It is a self number, because there is not a number n which added to its sum of digits gives 142727772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25947 + ... + 30962.

It is an arithmetic number, because the mean of its divisors is an integer number (7967400).

Almost surely, 2142727772 is an apocalyptic number.

142727772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142727772 is an abundant number, since it is smaller than the sum of its proper divisors (239707428).

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

142727772 is a wasteful number, since it uses less digits than its factorization.

142727772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56946 (or 56944 counting only the distinct ones).

The product of its digits is 76832, while the sum is 39.

The square root of 142727772 is about 11946.8728962855. The cubic root of 142727772 is about 522.6001084102.

The spelling of 142727772 in words is "one hundred forty-two million, seven hundred twenty-seven thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 11 12 19 22 33 38 44 57 66 76 114 132 209 228 418 627 836 1254 2508 56909 113818 170727 227636 341454 625999 682908 1081271 1251998 1877997 2162542 2503996 3243813 3755994 4325084 6487626 7511988 11893981 12975252 23787962 35681943 47575924 71363886 142727772