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123200431304 = 231051122311981
BaseRepresentation
bin111001010111101010…
…0010110010011001000
3102210000001100100220012
41302233110112103020
54004303302300204
6132333020451052
711621010246626
oct1625724262310
9383001310805
10123200431304
1148281482575
121ba636a9a88
13b8052772c2
145d6a404516
153310e3b76e
hex1caf5164c8

123200431304 has 32 divisors (see below), whose sum is σ = 231428975040. Its totient is φ = 61486152000.

The previous prime is 123200431297. The next prime is 123200431309. The reversal of 123200431304 is 403134002321.

It is a self number, because there is not a number n which added to its sum of digits gives 123200431304.

It is not an unprimeable number, because it can be changed into a prime (123200431309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10276994 + ... + 10288974.

It is an arithmetic number, because the mean of its divisors is an integer number (7232155470).

Almost surely, 2123200431304 is an apocalyptic number.

It is an amenable number.

123200431304 is a deficient number, since it is larger than the sum of its proper divisors (108228543736).

123200431304 is a wasteful number, since it uses less digits than its factorization.

123200431304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14261 (or 14257 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 123200431304 its reverse (403134002321), we get a palindrome (526334433625).

The spelling of 123200431304 in words is "one hundred twenty-three billion, two hundred million, four hundred thirty-one thousand, three hundred four".

Divisors: 1 2 4 8 1051 1223 2102 2446 4204 4892 8408 9784 11981 23962 47924 95848 1285373 2570746 5141492 10282984 12592031 14652763 25184062 29305526 50368124 58611052 100736248 117222104 15400053913 30800107826 61600215652 123200431304