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145113630 = 23537239547
BaseRepresentation
bin10001010011001…
…00001000011110
3101010001112110220
420221210020132
5244122114010
622222142210
73411305544
oct1051441036
9333045426
10145113630
1174a05022
1240721966
13240aaa6c
14153b5d94
15cb16970
hex8a6421e

145113630 has 64 divisors (see below), whose sum is σ = 359838720. Its totient is φ = 37425024.

The previous prime is 145113607. The next prime is 145113641. The reversal of 145113630 is 36311541.

It is a super-2 number, since 2×1451136302 = 42115931223553800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145113630.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265017 + ... + 265563.

It is an arithmetic number, because the mean of its divisors is an integer number (5622480).

Almost surely, 2145113630 is an apocalyptic number.

145113630 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 145113630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179919360).

145113630 is an abundant number, since it is smaller than the sum of its proper divisors (214725090).

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

145113630 is a wasteful number, since it uses less digits than its factorization.

145113630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 145113630 is about 12046.3118837261. The cubic root of 145113630 is about 525.4959847940.

The spelling of 145113630 in words is "one hundred forty-five million, one hundred thirteen thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 37 74 111 185 222 239 370 478 547 555 717 1094 1110 1195 1434 1641 2390 2735 3282 3585 5470 7170 8205 8843 16410 17686 20239 26529 40478 44215 53058 60717 88430 101195 121434 130733 132645 202390 261466 265290 303585 392199 607170 653665 784398 1307330 1960995 3921990 4837121 9674242 14511363 24185605 29022726 48371210 72556815 145113630