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122270680 = 2357262383
BaseRepresentation
bin1110100100110…
…11001111011000
322112001222211201
413102123033120
5222300130210
620044403544
73013166200
oct722331730
9275058751
10122270680
1163022854
1234b465b4
131c44061c
141234b400
15ab0353a
hex749b3d8

122270680 has 48 divisors (see below), whose sum is σ = 320029920. Its totient is φ = 41920704.

The previous prime is 122270663. The next prime is 122270683. The reversal of 122270680 is 86072221.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122270683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29232 + ... + 33151.

It is an arithmetic number, because the mean of its divisors is an integer number (6667290).

Almost surely, 2122270680 is an apocalyptic number.

122270680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122270680 is an abundant number, since it is smaller than the sum of its proper divisors (197759240).

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

122270680 is a wasteful number, since it uses less digits than its factorization.

122270680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62408 (or 62397 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 122270680 is about 11057.6073361284. The cubic root of 122270680 is about 496.3340946298.

The spelling of 122270680 in words is "one hundred twenty-two million, two hundred seventy thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 140 196 245 280 392 490 980 1960 62383 124766 249532 311915 436681 499064 623830 873362 1247660 1746724 2183405 2495320 3056767 3493448 4366810 6113534 8733620 12227068 15283835 17467240 24454136 30567670 61135340 122270680