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13970772 = 2233277467
BaseRepresentation
bin110101010010…
…110101010100
3222021210022000
4311102311110
512034031042
61215235300
7226515054
oct65226524
928253260
1013970772
1179824a2
124818b30
132b8203a
141bd9564
15135e74c
hexd52d54

13970772 has 48 divisors (see below), whose sum is σ = 36429120. Its totient is φ = 4630176.

The previous prime is 13970767. The next prime is 13970783. The reversal of 13970772 is 27707931.

13970772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29683 + ... + 30149.

It is an arithmetic number, because the mean of its divisors is an integer number (758940).

Almost surely, 213970772 is an apocalyptic number.

13970772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13970772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18214560).

13970772 is an abundant number, since it is smaller than the sum of its proper divisors (22458348).

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

13970772 is a wasteful number, since it uses less digits than its factorization.

13970772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 13970772 is about 3737.7495903284. The cubic root of 13970772 is about 240.8463866149.

The spelling of 13970772 in words is "thirteen million, nine hundred seventy thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 277 467 554 831 934 1108 1401 1662 1868 2493 2802 3324 4203 4986 5604 7479 8406 9972 12609 14958 16812 25218 29916 50436 129359 258718 388077 517436 776154 1164231 1552308 2328462 3492693 4656924 6985386 13970772