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145855546470 = 23251620617183
BaseRepresentation
bin1000011111010110101…
…0110000010001100110
3111221110220221110102200
42013311222300101212
54342203004441340
6151001034315330
713352302455234
oct2076552602146
9457426843380
10145855546470
1156947720947
1224326888b46
13109a5a515aa
1470b9197954
153bd9d23330
hex21f5ab0466

145855546470 has 24 divisors (see below), whose sum is σ = 379224421056. Its totient is φ = 38894812368.

The previous prime is 145855546439. The next prime is 145855546483. The reversal of 145855546470 is 74645558541.

145855546470 is a `hidden beast` number, since 1 + 4 + 5 + 8 + 55 + 546 + 47 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 810308502 + ... + 810308681.

It is an arithmetic number, because the mean of its divisors is an integer number (15801017544).

Almost surely, 2145855546470 is an apocalyptic number.

145855546470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145855546470 is an abundant number, since it is smaller than the sum of its proper divisors (233368874586).

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

145855546470 is a wasteful number, since it uses less digits than its factorization.

145855546470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620617196 (or 1620617193 counting only the distinct ones).

The product of its (nonzero) digits is 13440000, while the sum is 54.

The spelling of 145855546470 in words is "one hundred forty-five billion, eight hundred fifty-five million, five hundred forty-six thousand, four hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1620617183 3241234366 4861851549 8103085915 9723703098 14585554647 16206171830 24309257745 29171109294 48618515490 72927773235 145855546470