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145688734460 = 2257284436723
BaseRepresentation
bin1000011110101110111…
…0011010101011111100
3111221001022001112101002
42013223232122223330
54341332304000320
6150532315105432
713345205544653
oct2075356325374
9457038045332
10145688734460
1156871546585
122429aa42278
131097a317369
1470a0d7419a
153bca372675
hex21ebb9aafc

145688734460 has 12 divisors (see below), whose sum is σ = 305946342408. Its totient is φ = 58275493776.

The previous prime is 145688734391. The next prime is 145688734483. The reversal of 145688734460 is 64437886541.

It is a junction number, because it is equal to n+sod(n) for n = 145688734396 and 145688734405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3642218342 + ... + 3642218381.

It is an arithmetic number, because the mean of its divisors is an integer number (25495528534).

Almost surely, 2145688734460 is an apocalyptic number.

145688734460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145688734460 is an abundant number, since it is smaller than the sum of its proper divisors (160257607948).

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

145688734460 is a wasteful number, since it uses less digits than its factorization.

145688734460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7284436732 (or 7284436730 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 56.

The spelling of 145688734460 in words is "one hundred forty-five billion, six hundred eighty-eight million, seven hundred thirty-four thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 7284436723 14568873446 29137746892 36422183615 72844367230 145688734460