Search a number
-
+
69168937922 = 2723128572
BaseRepresentation
bin100000001101011001…
…0100011101111000010
320121112111120010000122
41000122302203233002
52113124222003142
651435322220242
74666033162100
oct1003262435702
9217474503018
1069168937922
1127375075907
12114a4654682
1366a420a246
1434c24c2c70
151bec6a01d2
hex101aca3bc2

69168937922 has 54 divisors (see below), whose sum is σ = 124857334521. Its totient is φ = 28654103520.

The previous prime is 69168937909. The next prime is 69168937951. The reversal of 69168937922 is 22973986196.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 52610138161 + 16558799761 = 229369^2 + 128681^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=185969.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 80710118 + ... + 80710974.

Almost surely, 269168937922 is an apocalyptic number.

69168937922 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

69168937922 is a deficient number, since it is larger than the sum of its proper divisors (55688396599).

69168937922 is an frugal number, since it uses more digits than its factorization.

69168937922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792 (or 897 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 62.

The spelling of 69168937922 in words is "sixty-nine billion, one hundred sixty-eight million, nine hundred thirty-seven thousand, nine hundred twenty-two".

Divisors: 1 2 7 14 31 49 62 98 217 434 857 961 1519 1714 1922 3038 5999 6727 11998 13454 26567 41993 47089 53134 83986 94178 185969 371938 734449 823577 1301783 1468898 1647154 2603566 5141143 5765039 10282286 11530078 22767919 35988001 40355273 45535838 71976002 80710546 159375433 318750866 705805489 1115628031 1411610978 2231256062 4940638423 9881276846 34584468961 69168937922