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145267168780 = 22523315798193
BaseRepresentation
bin1000011101001010011…
…0010001011000001100
3111212221220210202222101
42013102212101120030
54340001343400110
6150422415324444
713331566363336
oct2072246213014
9455856722871
10145267168780
1156675590a98
12241a1820724
1310910b94b06
147060d98456
153ba334e13a
hex21d299160c

145267168780 has 24 divisors (see below), whose sum is σ = 318324579552. Its totient is φ = 55580481792.

The previous prime is 145267168769. The next prime is 145267168819. The reversal of 145267168780 is 87861762541.

It is a super-2 number, since 2×1452671687802 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157898637 + ... + 157899556.

It is an arithmetic number, because the mean of its divisors is an integer number (13263524148).

Almost surely, 2145267168780 is an apocalyptic number.

145267168780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145267168780 is an abundant number, since it is smaller than the sum of its proper divisors (173057410772).

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

145267168780 is a wasteful number, since it uses less digits than its factorization.

145267168780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315798225 (or 315798223 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 145267168780 in words is "one hundred forty-five billion, two hundred sixty-seven million, one hundred sixty-eight thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 315798193 631596386 1263192772 1578990965 3157981930 6315963860 7263358439 14526716878 29053433756 36316792195 72633584390 145267168780