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13770470 = 2572157179
BaseRepresentation
bin110100100001…
…111011100110
3221220121112102
4310201323212
512011123340
61211052102
7225022100
oct64417346
927817472
1013770470
117855a5a
124741032
132b11b0c
141b86570
151320215
hexd21ee6

13770470 has 48 divisors (see below), whose sum is σ = 29179440. Its totient is φ = 4665024.

The previous prime is 13770469. The next prime is 13770481. The reversal of 13770470 is 7407731.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76841 + ... + 77019.

It is an arithmetic number, because the mean of its divisors is an integer number (607905).

Almost surely, 213770470 is an apocalyptic number.

13770470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13770470 is an abundant number, since it is smaller than the sum of its proper divisors (15408970).

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

13770470 is a wasteful number, since it uses less digits than its factorization.

13770470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 29.

The square root of 13770470 is about 3710.8583912621. The cubic root of 13770470 is about 239.6898191962.

It can be divided in two parts, 137 and 70470, that added together give a palindrome (70607).

The spelling of 13770470 in words is "thirteen million, seven hundred seventy thousand, four hundred seventy".

Divisors: 1 2 5 7 10 14 35 49 70 98 157 179 245 314 358 490 785 895 1099 1253 1570 1790 2198 2506 5495 6265 7693 8771 10990 12530 15386 17542 28103 38465 43855 56206 76930 87710 140515 196721 281030 393442 983605 1377047 1967210 2754094 6885235 13770470