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142944371500 = 2253740841249
BaseRepresentation
bin1000010100100000100…
…1100000001100101100
3111122222001001110010111
42011020021200030230
54320222224342000
6145400121545404
713220203052530
oct2051011401454
9448861043114
10142944371500
115569340a017
1223853945264
131063089a258
146cc06b3bc0
153ab9477cba
hex214826032c

142944371500 has 48 divisors (see below), whose sum is σ = 356789160000. Its totient is φ = 49009497600.

The previous prime is 142944371483. The next prime is 142944371503. The reversal of 142944371500 is 5173449241.

It is not an unprimeable number, because it can be changed into a prime (142944371503) 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, 20417125 + ... + 20424124.

It is an arithmetic number, because the mean of its divisors is an integer number (7433107500).

Almost surely, 2142944371500 is an apocalyptic number.

142944371500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142944371500 is an abundant number, since it is smaller than the sum of its proper divisors (213844788500).

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

142944371500 is a wasteful number, since it uses less digits than its factorization.

142944371500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40841275 (or 40841263 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 142944371500 in words is "one hundred forty-two billion, nine hundred forty-four million, three hundred seventy-one thousand, five hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 125 140 175 250 350 500 700 875 1750 3500 40841249 81682498 163364996 204206245 285888743 408412490 571777486 816824980 1021031225 1143554972 1429443715 2042062450 2858887430 4084124900 5105156125 5717774860 7147218575 10210312250 14294437150 20420624500 28588874300 35736092875 71472185750 142944371500