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145468204140 = 22357249478981
BaseRepresentation
bin1000011101111010010…
…1001010010001101100
3111220110221002102122110
42013132211022101230
54340404330013030
6150454400244020
713336560222300
oct2073645122154
9456427072573
10145468204140
1156769010916
1224239010610
131094372244c
14707d969d00
153bb5d101b0
hex21de94a46c

145468204140 has 72 divisors (see below), whose sum is σ = 473810731632. Its totient is φ = 33249874560.

The previous prime is 145468204129. The next prime is 145468204151. The reversal of 145468204140 is 41402864541.

It is an interprime number because it is at equal distance from previous prime (145468204129) and next prime (145468204151).

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, 24736551 + ... + 24742430.

It is an arithmetic number, because the mean of its divisors is an integer number (6580704606).

Almost surely, 2145468204140 is an apocalyptic number.

145468204140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145468204140 is an abundant number, since it is smaller than the sum of its proper divisors (328342527492).

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

145468204140 is a wasteful number, since it uses less digits than its factorization.

145468204140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49479007 (or 49478998 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The spelling of 145468204140 in words is "one hundred forty-five billion, four hundred sixty-eight million, two hundred four thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 60 70 84 98 105 140 147 196 210 245 294 420 490 588 735 980 1470 2940 49478981 98957962 148436943 197915924 247394905 296873886 346352867 494789810 593747772 692705734 742184715 989579620 1039058601 1385411468 1484369430 1731764335 2078117202 2424470069 2968738860 3463528670 4156234404 4848940138 5195293005 6927057340 7273410207 9697880276 10390586010 12122350345 14546820414 20781172020 24244700690 29093640828 36367051035 48489401380 72734102070 145468204140