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12746830 = 2523157353
BaseRepresentation
bin110000101000…
…000001001110
3212222121100211
4300220001032
511230344310
61133113034
7213226525
oct60500116
925877324
1012746830
117216978
12432877a
132843c05
14199b4bc
1511bbc8a
hexc2804e

12746830 has 32 divisors (see below), whose sum is σ = 24162624. Its totient is φ = 4832256.

The previous prime is 12746819. The next prime is 12746837. The reversal of 12746830 is 3864721.

It is a junction number, because it is equal to n+sod(n) for n = 12746792 and 12746801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12746837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35934 + ... + 36286.

It is an arithmetic number, because the mean of its divisors is an integer number (755082).

Almost surely, 212746830 is an apocalyptic number.

12746830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12746830 is a deficient number, since it is larger than the sum of its proper divisors (11415794).

12746830 is a wasteful number, since it uses less digits than its factorization.

12746830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 12746830 is about 3570.2702978906. The cubic root of 12746830 is about 233.5970736599.

The spelling of 12746830 in words is "twelve million, seven hundred forty-six thousand, eight hundred thirty".

Divisors: 1 2 5 10 23 46 115 157 230 314 353 706 785 1570 1765 3530 3611 7222 8119 16238 18055 36110 40595 55421 81190 110842 277105 554210 1274683 2549366 6373415 12746830