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311320101230 = 25373203262693
BaseRepresentation
bin1001000011111000001…
…11111100000101101110
31002202120102200202022122
410201330013330011232
520100040421214410
6355003554112542
731330542125045
oct4417407740556
91082512622278
10311320101230
11110037098966
125040457b752
1323485171568
14110d473955c
1581713cce55
hex487c1fc16e

311320101230 has 32 divisors (see below), whose sum is σ = 575703357984. Its totient is φ = 121124128896.

The previous prime is 311320101221. The next prime is 311320101277. The reversal of 311320101230 is 32101023113.

It is a junction number, because it is equal to n+sod(n) for n = 311320101199 and 311320101208.

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, 1053764 + ... + 1316456.

It is an arithmetic number, because the mean of its divisors is an integer number (17990729937).

Almost surely, 2311320101230 is an apocalyptic number.

311320101230 is a deficient number, since it is larger than the sum of its proper divisors (264383256754).

311320101230 is a wasteful number, since it uses less digits than its factorization.

311320101230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265940.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 311320101230 its reverse (32101023113), we get a palindrome (343421124343).

The spelling of 311320101230 in words is "three hundred eleven billion, three hundred twenty million, one hundred one thousand, two hundred thirty".

Divisors: 1 2 5 10 37 74 185 370 3203 6406 16015 32030 118511 237022 262693 525386 592555 1185110 1313465 2626930 9719641 19439282 48598205 97196410 841405679 1682811358 4207028395 8414056790 31132010123 62264020246 155660050615 311320101230