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142746468 = 223192921589
BaseRepresentation
bin10001000001000…
…10001101100100
3100221121021100020
420200202031210
5243020341333
622055315140
73352216314
oct1040421544
9327537306
10142746468
1173638597
123b97bab0
132375c487
1414d5b444
15c7ea3b3
hex8822364

142746468 has 48 divisors (see below), whose sum is σ = 362712000. Its totient is φ = 43521408.

The previous prime is 142746451. The next prime is 142746479. The reversal of 142746468 is 864647241.

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, 4183 + ... + 17406.

It is an arithmetic number, because the mean of its divisors is an integer number (7556500).

Almost surely, 2142746468 is an apocalyptic number.

It is an amenable number.

142746468 is an abundant number, since it is smaller than the sum of its proper divisors (219965532).

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

142746468 is a wasteful number, since it uses less digits than its factorization.

142746468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21644 (or 21642 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The square root of 142746468 is about 11947.6553348345. The cubic root of 142746468 is about 522.6229259855.

It can be divided in two parts, 1427 and 46468, that added together give a triangular number (47895 = T309).

The spelling of 142746468 in words is "one hundred forty-two million, seven hundred forty-six thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 19 29 38 57 58 76 87 114 116 174 228 348 551 1102 1653 2204 3306 6612 21589 43178 64767 86356 129534 259068 410191 626081 820382 1230573 1252162 1640764 1878243 2461146 2504324 3756486 4922292 7512972 11895539 23791078 35686617 47582156 71373234 142746468