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10145963385 = 3251454915497
BaseRepresentation
bin10010111001011111…
…10001110101111001
3222012002102100020200
421130233301311321
5131234331312020
64354435112413
7506266160115
oct113457616571
928162370220
1010145963385
11433714a508
121b71a42709
13c59004c3c
146c36ba745
153e5ae1590
hex25cbf1d79

10145963385 has 24 divisors (see below), whose sum is σ = 17588680200. Its totient is φ = 5410459392.

The previous prime is 10145963381. The next prime is 10145963411. The reversal of 10145963385 is 58336954101.

10145963385 is a `hidden beast` number, since 1 + 0 + 1 + 4 + 5 + 9 + 633 + 8 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5321410704 + 4824552681 = 72948^2 + 69459^2 .

It is not a de Polignac number, because 10145963385 - 22 = 10145963381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 10145963385.

It is not an unprimeable number, because it can be changed into a prime (10145963381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 646957 + ... + 662453.

It is an arithmetic number, because the mean of its divisors is an integer number (732861675).

Almost surely, 210145963385 is an apocalyptic number.

10145963385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10145963385 is a deficient number, since it is larger than the sum of its proper divisors (7442716815).

10145963385 is a wasteful number, since it uses less digits than its factorization.

10145963385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30057 (or 30054 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 10145963385 in words is "ten billion, one hundred forty-five million, nine hundred sixty-three thousand, three hundred eighty-five".

Divisors: 1 3 5 9 15 45 14549 15497 43647 46491 72745 77485 130941 139473 218235 232455 654705 697365 225465853 676397559 1127329265 2029192677 3381987795 10145963385