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13625430 = 23572132331
BaseRepresentation
bin110011111110…
…100001010110
3221122020120120
4303332201112
511442003210
61204012410
7223546200
oct63764126
927566516
1013625430
117766a95
124691106
132a90ab0
141b49770
1512e2270
hexcfe856

13625430 has 192 divisors, whose sum is σ = 44126208. Its totient is φ = 2661120.

The previous prime is 13625419. The next prime is 13625431. The reversal of 13625430 is 3452631.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13625430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13625431) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 439515 + ... + 439545.

It is an arithmetic number, because the mean of its divisors is an integer number (229824).

Almost surely, 213625430 is an apocalyptic number.

13625430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13625430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22063104).

13625430 is an abundant number, since it is smaller than the sum of its proper divisors (30500778).

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

13625430 is a wasteful number, since it uses less digits than its factorization.

13625430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 13625430 is about 3691.2640111485. The cubic root of 13625430 is about 238.8453216225.

The spelling of 13625430 in words is "thirteen million, six hundred twenty-five thousand, four hundred thirty".