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1305450031130 = 257210872450951
BaseRepresentation
bin10010111111110010111…
…000101010100000011010
311121210121001112201102222
4102333302320222200122
5132342030201444010
62435414312424042
7163213161115100
oct22776270524032
94553531481388
101305450031130
11463702567253
121910086a8022
1396146263c2b
1447281315c70
1523e57624355
hex12ff2e2a81a

1305450031130 has 48 divisors (see below), whose sum is σ = 2735968306176. Its totient is φ = 447170925600.

The previous prime is 1305450031129. The next prime is 1305450031241. The reversal of 1305450031130 is 311300545031.

It is a self number, because there is not a number n which added to its sum of digits gives 1305450031130.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 692846 + ... + 1758105.

It is an arithmetic number, because the mean of its divisors is an integer number (56999339712).

Almost surely, 21305450031130 is an apocalyptic number.

1305450031130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1305450031130 is an abundant number, since it is smaller than the sum of its proper divisors (1430518275046).

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

1305450031130 is a wasteful number, since it uses less digits than its factorization.

1305450031130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452059 (or 2452052 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 1305450031130 its reverse (311300545031), we get a palindrome (1616750576161).

The spelling of 1305450031130 in words is "one trillion, three hundred five billion, four hundred fifty million, thirty-one thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 1087 2174 5435 7609 10870 15218 38045 53263 76090 106526 266315 532630 2450951 4901902 12254755 17156657 24509510 34313314 85783285 120096599 171566570 240193198 600482995 1200965990 2664183737 5328367474 13320918685 18649286159 26641837370 37298572318 93246430795 130545003113 186492861590 261090006226 652725015565 1305450031130