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122470749 = 3213607861
BaseRepresentation
bin1110100110011…
…00000101011101
322112110011021200
413103030011131
5222323030444
620052550113
73014661402
oct723140535
9275404250
10122470749
116314a0a5
1235022339
131c4b06cb
14123a02a9
15ab42969
hex74cc15d

122470749 has 6 divisors (see below), whose sum is σ = 176902206. Its totient is φ = 81647160.

The previous prime is 122470729. The next prime is 122470781. The reversal of 122470749 is 947074221.

It can be written as a sum of positive squares in only one way, i.e., 99141849 + 23328900 = 9957^2 + 4830^2 .

It is not a de Polignac number, because 122470749 - 25 = 122470717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122470709) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6803922 + ... + 6803939.

It is an arithmetic number, because the mean of its divisors is an integer number (29483701).

Almost surely, 2122470749 is an apocalyptic number.

It is an amenable number.

122470749 is a deficient number, since it is larger than the sum of its proper divisors (54431457).

122470749 is a wasteful number, since it uses less digits than its factorization.

122470749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13607867 (or 13607864 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 122470749 is about 11066.6503062128. The cubic root of 122470749 is about 496.6046608678.

The spelling of 122470749 in words is "one hundred twenty-two million, four hundred seventy thousand, seven hundred forty-nine".

Divisors: 1 3 9 13607861 40823583 122470749