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122266940 = 22552311689
BaseRepresentation
bin1110100100110…
…10010100111100
322112001210201012
413102122110330
5222300020230
620044334352
73013152245
oct722322474
9275053635
10122266940
116301aa64
1234b443b8
131c43ba03
1412349ccc
15ab02395
hex749a53c

122266940 has 24 divisors (see below), whose sum is σ = 257273520. Its totient is φ = 48809088.

The previous prime is 122266933. The next prime is 122266951. The reversal of 122266940 is 49662221.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 122266897 and 122266906.

It is a congruent number.

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, 4616 + ... + 16304.

It is an arithmetic number, because the mean of its divisors is an integer number (10719730).

Almost surely, 2122266940 is an apocalyptic number.

122266940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122266940 is an abundant number, since it is smaller than the sum of its proper divisors (135006580).

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

122266940 is a wasteful number, since it uses less digits than its factorization.

122266940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12221 (or 12219 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 122266940 is about 11057.4382204921. The cubic root of 122266940 is about 496.3290339768.

The spelling of 122266940 in words is "one hundred twenty-two million, two hundred sixty-six thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 523 1046 2092 2615 5230 10460 11689 23378 46756 58445 116890 233780 6113347 12226694 24453388 30566735 61133470 122266940