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145235070 = 232513711779
BaseRepresentation
bin10001010100000…
…01110001111110
3101010021201001200
420222001301332
5244140010240
622224520330
73412322601
oct1052016176
9333251050
10145235070
1174a88292
12407800a6
1324121116
1415408338
15cb3c930
hex8a81c7e

145235070 has 48 divisors (see below), whose sum is σ = 380399760. Its totient is φ = 38443392.

The previous prime is 145235039. The next prime is 145235081. The reversal of 145235070 is 70532541.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6441 + ... + 18219.

It is an arithmetic number, because the mean of its divisors is an integer number (7924995).

Almost surely, 2145235070 is an apocalyptic number.

145235070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145235070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190199880).

145235070 is an abundant number, since it is smaller than the sum of its proper divisors (235164690).

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

145235070 is a wasteful number, since it uses less digits than its factorization.

145235070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11929 (or 11926 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 145235070 is about 12051.3513765055. The cubic root of 145235070 is about 525.6425330286.

The spelling of 145235070 in words is "one hundred forty-five million, two hundred thirty-five thousand, seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 137 274 411 685 822 1233 1370 2055 2466 4110 6165 11779 12330 23558 35337 58895 70674 106011 117790 176685 212022 353370 530055 1060110 1613723 3227446 4841169 8068615 9682338 14523507 16137230 24205845 29047014 48411690 72617535 145235070