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142878368674276 = 22792756532
BaseRepresentation
bin100000011111001001110110…
…011010010011000111100100
3200201220001001011201021100121
4200133021312122103013210
5122211404344340034101
61223513225541051324
742044423112241114
oct4037116632230744
9621801034637317
10142878368674276
1141586415315724
12140369506b6b44
1361954ac0a2c41
14273d4c8351044
15117b8da93e0a1
hex81f2766931e4

142878368674276 has 27 divisors (see below), whose sum is σ = 253245583431561. Its totient is φ = 70533958516944.

The previous prime is 142878368674253. The next prime is 142878368674291. The reversal of 142878368674276 is 672476863878241.

The square root of 142878368674276 is 11953174.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 79536253256100 + 63342115418176 = 8918310^2 + 7958776^2 .

It is a Harshad number since it is a multiple of its sum of digits (79).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142878368674196 and 142878368674205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1888563666 + ... + 1888639318.

Almost surely, 2142878368674276 is an apocalyptic number.

142878368674276 is the 11953174-th square number.

It is an amenable number.

142878368674276 is a deficient number, since it is larger than the sum of its proper divisors (110367214757285).

142878368674276 is an frugal number, since it uses more digits than its factorization.

142878368674276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151468 (or 75734 counting only the distinct ones).

The product of its digits is 7283146752, while the sum is 79.

The spelling of 142878368674276 in words is "one hundred forty-two trillion, eight hundred seventy-eight billion, three hundred sixty-eight million, six hundred seventy-four thousand, two hundred seventy-six".

Divisors: 1 2 4 79 158 316 6241 12482 24964 75653 151306 302612 5976587 11953174 23906348 472150373 944300746 1888601492 5723376409 11446752818 22893505636 452146736311 904293472622 1808586945244 35719592168569 71439184337138 142878368674276