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145204030312 = 231129197288823
BaseRepresentation
bin1000011100111011010…
…1011010101101101000
3111212210112000000021121
42013032311122231220
54334334212432222
6150412242145024
713330201615225
oct2071665325550
9455715000247
10145204030312
1156642987140
1224184652174
1310900a89483
14705684094c
153b9ca2b5c7
hex21ced5ab68

145204030312 has 64 divisors (see below), whose sum is σ = 308810620800. Its totient is φ = 63402205440.

The previous prime is 145204030297. The next prime is 145204030319. The reversal of 145204030312 is 213030402541.

It is not an unprimeable number, because it can be changed into a prime (145204030319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358333 + ... + 647155.

It is an arithmetic number, because the mean of its divisors is an integer number (4825165950).

Almost surely, 2145204030312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145204030312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154405310400).

145204030312 is an abundant number, since it is smaller than the sum of its proper divisors (163606590488).

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

145204030312 is a wasteful number, since it uses less digits than its factorization.

145204030312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289066 (or 289062 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 145204030312 its reverse (213030402541), we get a palindrome (358234432853).

The spelling of 145204030312 in words is "one hundred forty-five billion, two hundred four million, thirty thousand, three hundred twelve".

Divisors: 1 2 4 8 11 22 29 44 58 88 116 197 232 319 394 638 788 1276 1576 2167 2552 4334 5713 8668 11426 17336 22852 45704 62843 125686 251372 288823 502744 577646 1155292 2310584 3177053 6354106 8375867 12708212 16751734 25416424 33503468 56898131 67006936 92134537 113796262 184269074 227592524 368538148 455185048 625879441 737076296 1251758882 1650045799 2503517764 3300091598 5007035528 6600183196 13200366392 18150503789 36301007578 72602015156 145204030312