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148281144252390 = 2335549189423157
BaseRepresentation
bin100001101101110001100100…
…111011100001011111100110
3201110000112112220010202011000
4201231301210323201133212
5123413414240412034030
61243211230044054130
743142646662025612
oct4155614473413746
9643015486122130
10148281144252390
1143279753281496
1214769a67234346
136497b0c831746
142888bba764342
1512221ed56c860
hex86dc64ee17e6

148281144252390 has 32 divisors (see below), whose sum is σ = 395416384673760. Its totient is φ = 39541638467232.

The previous prime is 148281144252379. The next prime is 148281144252403. The reversal of 148281144252390 is 93252441182841.

148281144252390 is a `hidden beast` number, since 1 + 4 + 8 + 28 + 1 + 1 + 4 + 4 + 2 + 523 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274594711309 + ... + 274594711848.

It is an arithmetic number, because the mean of its divisors is an integer number (12356762021055).

Almost surely, 2148281144252390 is an apocalyptic number.

148281144252390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

148281144252390 is an abundant number, since it is smaller than the sum of its proper divisors (247135240421370).

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

148281144252390 is a wasteful number, since it uses less digits than its factorization.

148281144252390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549189423173 (or 549189423167 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 148281144252390 in words is "one hundred forty-eight trillion, two hundred eighty-one billion, one hundred forty-four million, two hundred fifty-two thousand, three hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 549189423157 1098378846314 1647568269471 2745947115785 3295136538942 4942704808413 5491894231570 8237841347355 9885409616826 14828114425239 16475682694710 24713524042065 29656228850478 49427048084130 74140572126195 148281144252390