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145195895 = 513172329197
BaseRepresentation
bin10001010011110…
…00001101110111
3101010012201022202
420221320031313
5244132232040
622224015115
73412100435
oct1051701567
9333181282
10145195895
1174a60909
124076149b
1324109340
14153d7d55
15cb31015
hex8a78377

145195895 has 64 divisors (see below), whose sum is σ = 215550720. Its totient is φ = 92725248.

The previous prime is 145195871. The next prime is 145195903. The reversal of 145195895 is 598591541.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 145195895 - 212 = 145191799 is a prime.

It is a super-3 number, since 3×1451958953 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 736937 + ... + 737133.

It is an arithmetic number, because the mean of its divisors is an integer number (3367980).

Almost surely, 2145195895 is an apocalyptic number.

145195895 is a deficient number, since it is larger than the sum of its proper divisors (70354825).

145195895 is a wasteful number, since it uses less digits than its factorization.

145195895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284.

The product of its digits is 324000, while the sum is 47.

The square root of 145195895 is about 12049.7259304932. The cubic root of 145195895 is about 525.5952673602.

The spelling of 145195895 in words is "one hundred forty-five million, one hundred ninety-five thousand, eight hundred ninety-five".

Divisors: 1 5 13 17 23 29 65 85 115 145 197 221 299 377 391 493 667 985 1105 1495 1885 1955 2465 2561 3335 3349 4531 5083 5713 6409 8671 11339 12805 16745 22655 25415 28565 32045 43355 43537 56695 58903 74269 77027 97121 131399 147407 217685 294515 371345 385135 485605 656995 737035 1001351 1262573 1708187 2233783 5006755 6312865 8540935 11168915 29039179 145195895