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122217026380 = 22529210719011
BaseRepresentation
bin111000111010010110…
…0111101001101001100
3102200110111220012221121
41301310230331031030
54000300024321010
6132051251010324
711554436404111
oct1616454751514
9380414805847
10122217026380
1147917363929
121b82a2999a4
13b6a95ca7b7
145cb5976908
1532a49373da
hex1c74b3d34c

122217026380 has 24 divisors (see below), whose sum is σ = 265505955120. Its totient is φ = 47201058240.

The previous prime is 122217026339. The next prime is 122217026383. The reversal of 122217026380 is 83620712221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (122217026383) 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, 105358926 + ... + 105360085.

It is an arithmetic number, because the mean of its divisors is an integer number (11062748130).

Almost surely, 2122217026380 is an apocalyptic number.

122217026380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122217026380 is an abundant number, since it is smaller than the sum of its proper divisors (143288928740).

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

122217026380 is a wasteful number, since it uses less digits than its factorization.

122217026380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210719049 (or 210719047 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 122217026380 in words is "one hundred twenty-two billion, two hundred seventeen million, twenty-six thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 210719011 421438022 842876044 1053595055 2107190110 4214380220 6110851319 12221702638 24443405276 30554256595 61108513190 122217026380