Search a number
-
+
102007688740 = 22520939243583
BaseRepresentation
bin101111100000000100…
…0011100111000100100
3100202022002110111102221
41133000020130320210
53132402432014430
6114510042442124
710240563022306
oct1370010347044
9322262414387
10102007688740
113a2967543a1
121792a203344
139808749649
144d1995b976
1529c061a57a
hex17c021ce24

102007688740 has 24 divisors (see below), whose sum is σ = 214227256320. Its totient is φ = 40800959328.

The previous prime is 102007688711. The next prime is 102007688759. The reversal of 102007688740 is 47886700201.

102007688740 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 296989 + ... + 540571.

It is an arithmetic number, because the mean of its divisors is an integer number (8926135680).

Almost surely, 2102007688740 is an apocalyptic number.

102007688740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102007688740 is an abundant number, since it is smaller than the sum of its proper divisors (112219567580).

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

102007688740 is a wasteful number, since it uses less digits than its factorization.

102007688740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264531 (or 264529 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 43.

The spelling of 102007688740 in words is "one hundred two billion, seven million, six hundred eighty-eight thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 20939 41878 83756 104695 209390 243583 418780 487166 974332 1217915 2435830 4871660 5100384437 10200768874 20401537748 25501922185 51003844370 102007688740