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145231311155130 = 23354911095506609
BaseRepresentation
bin100001000001011001001100…
…101101100010111110111010
3201001012222101210002211121000
4201001121030231202332322
5123013432211123431010
61232514202052225430
742406421164314624
oct4101311455427672
9631188353084530
10145231311155130
1142303286a7a212
121435697430b276
13630633b9cb455
1427c1339385c14
1511bcbede517c0
hex84164cb62fba

145231311155130 has 64 divisors (see below), whose sum is σ = 388072261526400. Its totient is φ = 38649473130240.

The previous prime is 145231311155081. The next prime is 145231311155137. The reversal of 145231311155130 is 31551113132541.

145231311155130 is a `hidden beast` number, since 1 + 4 + 5 + 2 + 3 + 131 + 1 + 1 + 5 + 513 + 0 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145231311155137) 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 31 ways as a sum of consecutive naturals, for example, 547620735 + ... + 547885874.

It is an arithmetic number, because the mean of its divisors is an integer number (6063629086350).

Almost surely, 2145231311155130 is an apocalyptic number.

145231311155130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145231311155130 is an abundant number, since it is smaller than the sum of its proper divisors (242840950371270).

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

145231311155130 is a wasteful number, since it uses less digits than its factorization.

145231311155130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095507116 (or 1095507110 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

Adding to 145231311155130 its reverse (31551113132541), we get a palindrome (176782424287671).

The spelling of 145231311155130 in words is "one hundred forty-five trillion, two hundred thirty-one billion, three hundred eleven million, one hundred fifty-five thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 491 982 1473 2455 2946 4419 4910 7365 8838 13257 14730 22095 26514 44190 66285 132570 1095506609 2191013218 3286519827 5477533045 6573039654 9859559481 10955066090 16432599135 19719118962 29578678443 32865198270 49297797405 59157356886 98595594810 147893392215 295786784430 537893745019 1075787490038 1613681235057 2689468725095 3227362470114 4841043705171 5378937450190 8068406175285 9682087410342 14523131115513 16136812350570 24205218525855 29046262231026 48410437051710 72615655577565 145231311155130