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312103231030 = 251719175112799
BaseRepresentation
bin1001000101010101100…
…11010101111000110110
31002211121000021212110001
410202222303111320312
520103141411343110
6355213411221514
731356131456233
oct4425263257066
91084530255401
10312103231030
111103a9156978
12505a28a789a
132357b498786
141116a75278a
1581ba02163a
hex48aacd5e36

312103231030 has 64 divisors (see below), whose sum is σ = 598789324800. Its totient is φ = 116717760000.

The previous prime is 312103230997. The next prime is 312103231039. The reversal of 312103231030 is 30132301213.

It is a junction number, because it is equal to n+sod(n) for n = 312103230989 and 312103231007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312103231039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24378571 + ... + 24391369.

It is an arithmetic number, because the mean of its divisors is an integer number (9356083200).

Almost surely, 2312103231030 is an apocalyptic number.

312103231030 is a deficient number, since it is larger than the sum of its proper divisors (286686093770).

312103231030 is a wasteful number, since it uses less digits than its factorization.

312103231030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13765.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 312103231030 its reverse (30132301213), we get a palindrome (342235532243).

The spelling of 312103231030 in words is "three hundred twelve billion, one hundred three million, two hundred thirty-one thousand, thirty".

Divisors: 1 2 5 10 17 34 85 170 191 382 751 955 1502 1910 3247 3755 6494 7510 12767 12799 16235 25534 25598 32470 63835 63995 127670 127990 143441 217583 286882 435166 717205 1087915 1434410 2175830 2438497 2444609 4876994 4889218 9612049 12192485 12223045 19224098 24384970 24446090 41558353 48060245 83116706 96120490 163404833 207791765 326809666 415583530 817024165 1634048330 1835901359 3671802718 9179506795 18359013590 31210323103 62420646206 156051615515 312103231030