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12103402030 = 254092959267
BaseRepresentation
bin10110100010110101…
…10100001000101110
31011020111200112021021
423101122310020232
5144241432331110
65321001524354
7605635135246
oct132132641056
934214615237
1012103402030
1151510670a5
1224194a36ba
1311ab6c9965
1482b656b26
154ac8982da
hex2d16b422e

12103402030 has 16 divisors (see below), whose sum is σ = 21839397840. Its totient is φ = 4829522112.

The previous prime is 12103401949. The next prime is 12103402037. The reversal of 12103402030 is 3020430121.

It is a happy number.

It is a super-3 number, since 3×121034020303 (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12103401995 and 12103402013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103402037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1475544 + ... + 1483723.

It is an arithmetic number, because the mean of its divisors is an integer number (1364962365).

Almost surely, 212103402030 is an apocalyptic number.

12103402030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12103402030 is a deficient number, since it is larger than the sum of its proper divisors (9735995810).

12103402030 is a wasteful number, since it uses less digits than its factorization.

12103402030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2959683.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12103402030 its reverse (3020430121), we get a palindrome (15123832151).

The spelling of 12103402030 in words is "twelve billion, one hundred three million, four hundred two thousand, thirty".

Divisors: 1 2 5 10 409 818 2045 4090 2959267 5918534 14796335 29592670 1210340203 2420680406 6051701015 12103402030