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145656314620 = 22518140236551
BaseRepresentation
bin1000011110100111001…
…0101111101011111100
3111220222001001102201021
42013221302233223330
54341301004031440
6150525200153524
713344333150325
oct2075162575374
9456861042637
10145656314620
1156855213023
12242900088a4
13109736a5b1b
14709a93544c
153bc75bb84a
hex21e9cafafc

145656314620 has 24 divisors (see below), whose sum is σ = 307568203488. Its totient is φ = 57940632000.

The previous prime is 145656314611. The next prime is 145656314623. The reversal of 145656314620 is 26413656541.

145656314620 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145656314623) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20114656 + ... + 20121895.

It is an arithmetic number, because the mean of its divisors is an integer number (12815341812).

Almost surely, 2145656314620 is an apocalyptic number.

145656314620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145656314620 is an abundant number, since it is smaller than the sum of its proper divisors (161911888868).

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

145656314620 is a wasteful number, since it uses less digits than its factorization.

145656314620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40236741 (or 40236739 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 145656314620 in words is "one hundred forty-five billion, six hundred fifty-six million, three hundred fourteen thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 181 362 724 905 1810 3620 40236551 80473102 160946204 201182755 402365510 804731020 7282815731 14565631462 29131262924 36414078655 72828157310 145656314620