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311252430124 = 22718913988591
BaseRepresentation
bin1001000011110000001…
…01110010110100101100
31002202101201100201000101
410201320011302310230
520044421110230444
6354553135440444
731326061001146
oct4417005626454
91082351321011
10311252430124
11110001978629
12503a5986124
1323474139a9c
14110c9761c96
15816a4b23d4
hex4878172d2c

311252430124 has 48 divisors (see below), whose sum is σ = 562594636800. Its totient is φ = 150617174400.

The previous prime is 311252430113. The next prime is 311252430127. The reversal of 311252430124 is 421034252113.

It is a junction number, because it is equal to n+sod(n) for n = 311252430092 and 311252430101.

It is not an unprimeable number, because it can be changed into a prime (311252430127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3469069 + ... + 3557659.

It is an arithmetic number, because the mean of its divisors is an integer number (11720721600).

Almost surely, 2311252430124 is an apocalyptic number.

It is an amenable number.

311252430124 is a deficient number, since it is larger than the sum of its proper divisors (251342206676).

311252430124 is a wasteful number, since it uses less digits than its factorization.

311252430124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88894 (or 88892 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 311252430124 its reverse (421034252113), we get a palindrome (732286682237).

The spelling of 311252430124 in words is "three hundred eleven billion, two hundred fifty-two million, four hundred thirty thousand, one hundred twenty-four".

Divisors: 1 2 4 71 89 139 142 178 278 284 356 556 6319 9869 12371 12638 19738 24742 25276 39476 49484 88591 177182 354364 878341 1756682 3513364 6289961 7884599 12314149 12579922 15769198 24628298 25159844 31538396 49256596 559806529 874304579 1095959261 1119613058 1748609158 2191918522 2239226116 3497218316 4383837044 77813107531 155626215062 311252430124