Search a number
-
+
78707409442 = 2179968922691
BaseRepresentation
bin100100101001101010…
…0111100001000100010
321112011020212200002121
41021103110330020202
52242143044100232
6100054020534454
75454304641004
oct1112324741042
9245136780077
1078707409442
113041a30a722
1213306b5142a
1375643c252c
143b49226374
1520a9c93d97
hex125353c222

78707409442 has 16 divisors (see below), whose sum is σ = 118738159200. Its totient is φ = 39128088160.

The previous prime is 78707409419. The next prime is 78707409481. The reversal of 78707409442 is 24490470787.

It is a self number, because there is not a number n which added to its sum of digits gives 78707409442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3457317 + ... + 3480007.

It is an arithmetic number, because the mean of its divisors is an integer number (7421134950).

Almost surely, 278707409442 is an apocalyptic number.

78707409442 is a deficient number, since it is larger than the sum of its proper divisors (40030749758).

78707409442 is a wasteful number, since it uses less digits than its factorization.

78707409442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32561.

The product of its (nonzero) digits is 3161088, while the sum is 52.

The spelling of 78707409442 in words is "seventy-eight billion, seven hundred seven million, four hundred nine thousand, four hundred forty-two".

Divisors: 1 2 179 358 9689 19378 22691 45382 1734331 3468662 4061689 8123378 219853099 439706198 39353704721 78707409442