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122505201 = 32713149579
BaseRepresentation
bin1110100110101…
…00011111110001
322112111220112200
413103110133301
5222330131301
620053413413
73015164010
oct723243761
9275456480
10122505201
1163172a75
123503a269
131c4c32b0
14123aca77
15ab4cc86
hex74d47f1

122505201 has 24 divisors (see below), whose sum is σ = 217788480. Its totient is φ = 64617696.

The previous prime is 122505197. The next prime is 122505203. The reversal of 122505201 is 102505221.

It is not a de Polignac number, because 122505201 - 22 = 122505197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122505203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73971 + ... + 75608.

It is an arithmetic number, because the mean of its divisors is an integer number (9074520).

Almost surely, 2122505201 is an apocalyptic number.

It is an amenable number.

122505201 is a deficient number, since it is larger than the sum of its proper divisors (95283279).

122505201 is a wasteful number, since it uses less digits than its factorization.

122505201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149605 (or 149602 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 122505201 is about 11068.2067653256. The cubic root of 122505201 is about 496.6512227880.

The spelling of 122505201 in words is "one hundred twenty-two million, five hundred five thousand, two hundred one".

Divisors: 1 3 7 9 13 21 39 63 91 117 273 819 149579 448737 1047053 1346211 1944527 3141159 5833581 9423477 13611689 17500743 40835067 122505201