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10304223012 = 2232325787881
BaseRepresentation
bin10011001100010110…
…11111011100100100
3222121010012202122100
421212023133130210
5132100340114022
64422251132100
7513230310336
oct114613373444
928533182570
1010304223012
114408513296
121bb6a44030
13c82a364a5
146da715456
154049531ac
hex2662df724

10304223012 has 36 divisors (see below), whose sum is σ = 26055079596. Its totient is φ = 3433647360.

The previous prime is 10304223001. The next prime is 10304223019. The reversal of 10304223012 is 21032240301.

It can be written as a sum of positive squares in 2 ways, for example, as 8066554596 + 2237668416 = 89814^2 + 47304^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (10304223019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73312 + ... + 161192.

It is an arithmetic number, because the mean of its divisors is an integer number (723752211).

Almost surely, 210304223012 is an apocalyptic number.

10304223012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10304223012 is an abundant number, since it is smaller than the sum of its proper divisors (15750856584).

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

10304223012 is a wasteful number, since it uses less digits than its factorization.

10304223012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91148 (or 91143 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 10304223012 its reverse (21032240301), we get a palindrome (31336463313).

The spelling of 10304223012 in words is "ten billion, three hundred four million, two hundred twenty-three thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 3257 6514 9771 13028 19542 29313 39084 58626 87881 117252 175762 263643 351524 527286 790929 1054572 1581858 3163716 286228417 572456834 858685251 1144913668 1717370502 2576055753 3434741004 5152111506 10304223012