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145804680 = 23325757859
BaseRepresentation
bin10001011000011…
…00110110001000
3101011100122102100
420230030312020
5244311222210
622245033400
73420214350
oct1054146610
9334318370
10145804680
117533723a
12409b5860
1324290478
1415515b60
15cc015c0
hex8b0cd88

145804680 has 96 divisors (see below), whose sum is σ = 541569600. Its totient is φ = 33326208.

The previous prime is 145804667. The next prime is 145804693. The reversal of 145804680 is 86408541.

145804680 is a `hidden beast` number, since 14 + 580 + 4 + 68 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (145804667) and next prime (145804693).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26410 + ... + 31449.

It is an arithmetic number, because the mean of its divisors is an integer number (5641350).

Almost surely, 2145804680 is an apocalyptic number.

145804680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145804680 is an abundant number, since it is smaller than the sum of its proper divisors (395764920).

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

145804680 is a wasteful number, since it uses less digits than its factorization.

145804680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57883 (or 57876 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 145804680 is about 12074.9608695018. The cubic root of 145804680 is about 526.3288242596.

The spelling of 145804680 in words is "one hundred forty-five million, eight hundred four thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 28 30 35 36 40 42 45 56 60 63 70 72 84 90 105 120 126 140 168 180 210 252 280 315 360 420 504 630 840 1260 2520 57859 115718 173577 231436 289295 347154 405013 462872 520731 578590 694308 810026 867885 1041462 1157180 1215039 1388616 1620052 1735770 2025065 2082924 2314360 2430078 2603655 3240104 3471540 3645117 4050130 4165848 4860156 5207310 6075195 6943080 7290234 8100260 9720312 10414620 12150390 14580468 16200520 18225585 20829240 24300780 29160936 36451170 48601560 72902340 145804680