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142640152772 = 22135950039293
BaseRepresentation
bin1000010011011000000…
…1000000000011000100
3111122011211121112111012
42010312001000003010
54314111334342042
6145310013301352
713206520202465
oct2046601000304
9448154545435
10142640152772
1155547713a87
1223789a94858
13105b2853180
146c92122d6c
153a9c8d3e82
hex21360400c4

142640152772 has 48 divisors (see below), whose sum is σ = 273462194880. Its totient is φ = 64698188928.

The previous prime is 142640152769. The next prime is 142640152777. The reversal of 142640152772 is 277251046241.

It is not an unprimeable number, because it can be changed into a prime (142640152777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15344558 + ... + 15353850.

It is an arithmetic number, because the mean of its divisors is an integer number (5697129060).

Almost surely, 2142640152772 is an apocalyptic number.

It is an amenable number.

142640152772 is a deficient number, since it is larger than the sum of its proper divisors (130822042108).

142640152772 is a wasteful number, since it uses less digits than its factorization.

142640152772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14372 (or 14370 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 142640152772 in words is "one hundred forty-two billion, six hundred forty million, one hundred fifty-two thousand, seven hundred seventy-two".

Divisors: 1 2 4 13 26 52 59 118 236 767 1534 3068 5003 9293 10006 18586 20012 37172 65039 120809 130078 241618 260156 295177 483236 548287 590354 1096574 1180708 2193148 3837301 7127731 7674602 14255462 15349204 28510924 46492879 92985758 185971516 604407427 1208814854 2417629708 2743079861 5486159722 10972319444 35660038193 71320076386 142640152772