Search a number
-
+
69737939380 = 2253486896969
BaseRepresentation
bin100000011110010110…
…1001000000110110100
320200000011020101021201
41000330231020012310
52120310403030010
652012010022244
75016112463344
oct1007455100664
9220004211251
1069737939380
112763728104a
1211623117984
1367650714b5
143537cbad24
151c325e823a
hex103cb481b4

69737939380 has 12 divisors (see below), whose sum is σ = 146449672740. Its totient is φ = 27895175744.

The previous prime is 69737939303. The next prime is 69737939431. The reversal of 69737939380 is 8393973796.

It can be written as a sum of positive squares in 2 ways, for example, as 38703479824 + 31034459556 = 196732^2 + 176166^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1743448465 + ... + 1743448504.

It is an arithmetic number, because the mean of its divisors is an integer number (12204139395).

Almost surely, 269737939380 is an apocalyptic number.

It is an amenable number.

69737939380 is an abundant number, since it is smaller than the sum of its proper divisors (76711733360).

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

69737939380 is a wasteful number, since it uses less digits than its factorization.

69737939380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3486896978 (or 3486896976 counting only the distinct ones).

The product of its (nonzero) digits is 46294416, while the sum is 64.

The spelling of 69737939380 in words is "sixty-nine billion, seven hundred thirty-seven million, nine hundred thirty-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 3486896969 6973793938 13947587876 17434484845 34868969690 69737939380