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312103333020 = 223512314225607
BaseRepresentation
bin1001000101010101100…
…11101110110010011100
31002211121000111001100110
410202222303232302130
520103141423124040
6355213413330020
731356132362463
oct4425263566234
91084530431313
10312103333020
111103a9216566
12505a2936910
132357b50301b
141116a77b9da
1581ba041980
hex48aaceec9c

312103333020 has 48 divisors (see below), whose sum is σ = 874599441408. Its totient is φ = 83159926080.

The previous prime is 312103333001. The next prime is 312103333039. The reversal of 312103333020 is 20333301213.

It is an interprime number because it is at equal distance from previous prime (312103333001) and next prime (312103333039).

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, 2038944 + ... + 2186663.

It is an arithmetic number, because the mean of its divisors is an integer number (18220821696).

Almost surely, 2312103333020 is an apocalyptic number.

312103333020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312103333020 is an abundant number, since it is smaller than the sum of its proper divisors (562496108388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312103333020 is a wasteful number, since it uses less digits than its factorization.

312103333020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4226850 (or 4226848 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 312103333020 its reverse (20333301213), we get a palindrome (332436634233).

The spelling of 312103333020 in words is "three hundred twelve billion, one hundred three million, three hundred thirty-three thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1231 2462 3693 4924 6155 7386 12310 14772 18465 24620 36930 73860 4225607 8451214 12676821 16902428 21128035 25353642 42256070 50707284 63384105 84512140 126768210 253536420 5201722217 10403444434 15605166651 20806888868 26008611085 31210333302 52017222170 62420666604 78025833255 104034444340 156051666510 312103333020