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102706724380 = 22513395025863
BaseRepresentation
bin101111110100111001…
…1000011111000011100
3100211002210211012001211
41133221303003320130
53140320410140010
6115103253314204
710264111516141
oct1375163037034
9324083735054
10102706724380
113a6152a51a7
1217aa4335964
1398ba50bac0
144d847243c8
152a11b9c08a
hex17e9cc3e1c

102706724380 has 24 divisors (see below), whose sum is σ = 232275208032. Its totient is φ = 37922482752.

The previous prime is 102706724347. The next prime is 102706724381. The reversal of 102706724380 is 83427607201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102706724381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197512672 + ... + 197513191.

It is an arithmetic number, because the mean of its divisors is an integer number (9678133668).

Almost surely, 2102706724380 is an apocalyptic number.

102706724380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102706724380 is an abundant number, since it is smaller than the sum of its proper divisors (129568483652).

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

102706724380 is a wasteful number, since it uses less digits than its factorization.

102706724380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395025885 (or 395025883 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 102706724380 in words is "one hundred two billion, seven hundred six million, seven hundred twenty-four thousand, three hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 395025863 790051726 1580103452 1975129315 3950258630 5135336219 7900517260 10270672438 20541344876 25676681095 51353362190 102706724380