Search a number
-
+
78468417185044 = 2232444476046363
BaseRepresentation
bin10001110101110111011010…
…001000011110010100010100
3101021211111200220120122121011
4101311313122020132110110
540241111304244410134
6434515520533302004
722346104346026135
oct2165673210362424
9337744626518534
1078468417185044
11230032a5919497
128973856194904
1334a2703486b33
141553c6a9bdc8c
15911224a0d264
hex475dda21e514

78468417185044 has 12 divisors (see below), whose sum is σ = 137319795109504. Its totient is φ = 39234190010904.

The previous prime is 78468417185003. The next prime is 78468417185047. The reversal of 78468417185044 is 44058171486487.

It is a super-2 number, since 2×784684171850442 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78468417185047) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9954607 + ... + 16000969.

Almost surely, 278468417185044 is an apocalyptic number.

It is an amenable number.

78468417185044 is a deficient number, since it is larger than the sum of its proper divisors (58851377924460).

78468417185044 is a wasteful number, since it uses less digits than its factorization.

78468417185044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9290814 (or 9290812 counting only the distinct ones).

The product of its (nonzero) digits is 192675840, while the sum is 67.

The spelling of 78468417185044 in words is "seventy-eight trillion, four hundred sixty-eight billion, four hundred seventeen million, one hundred eighty-five thousand, forty-four".

Divisors: 1 2 4 3244447 6046363 6488894 12092726 12977788 24185452 19617104296261 39234208592522 78468417185044