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122666480 = 2451533331
BaseRepresentation
bin1110100111110…
…11110111110000
322112211002202222
413103323313300
5222400311410
620101100212
73016435136
oct723736760
9275732688
10122666480
1163273162
12350b7668
131c54b821
1412411756
15ab80955
hex74fbdf0

122666480 has 20 divisors (see below), whose sum is σ = 285199752. Its totient is φ = 49066560.

The previous prime is 122666471. The next prime is 122666483. The reversal of 122666480 is 84666221.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 122666480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122666483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 766586 + ... + 766745.

Almost surely, 2122666480 is an apocalyptic number.

122666480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122666480 is an abundant number, since it is smaller than the sum of its proper divisors (162533272).

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

122666480 is a wasteful number, since it uses less digits than its factorization.

122666480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533344 (or 1533338 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 122666480 is about 11075.4900568778. The cubic root of 122666480 is about 496.8690755461.

The spelling of 122666480 in words is "one hundred twenty-two million, six hundred sixty-six thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1533331 3066662 6133324 7666655 12266648 15333310 24533296 30666620 61333240 122666480