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105312630974 = 252656315487
BaseRepresentation
bin110001000010100011…
…1110011100010111110
3101001211102021221212212
41202011013303202332
53211140013142344
6120214023100422
710415513410355
oct1420507634276
9331742257785
10105312630974
1140732264411
12184b0ba1712
139c1436c375
14515086299c
152b1584779e
hex18851f38be

105312630974 has 4 divisors (see below), whose sum is σ = 157968946464. Its totient is φ = 52656315486.

The previous prime is 105312630967. The next prime is 105312630977. The reversal of 105312630974 is 479036213501.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1053126309742 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105312630977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26328157742 + ... + 26328157745.

It is an arithmetic number, because the mean of its divisors is an integer number (39492236616).

Almost surely, 2105312630974 is an apocalyptic number.

105312630974 is a deficient number, since it is larger than the sum of its proper divisors (52656315490).

105312630974 is an equidigital number, since it uses as much as digits as its factorization.

105312630974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52656315489.

The product of its (nonzero) digits is 136080, while the sum is 41.

The spelling of 105312630974 in words is "one hundred five billion, three hundred twelve million, six hundred thirty thousand, nine hundred seventy-four".

Divisors: 1 2 52656315487 105312630974