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405425436 = 223134016481
BaseRepresentation
bin11000001010100…
…100110100011100
31001020212202010220
4120022210310130
51312242103221
6104121401340
713022026233
oct3012446434
91036782126
10405425436
11198941149
12b3939250
1365cc0c10
143bbb7b1a
15258d60c6
hex182a4d1c

405425436 has 48 divisors (see below), whose sum is σ = 1021459488. Its totient is φ = 124416000.

The previous prime is 405425389. The next prime is 405425441. The reversal of 405425436 is 634524504.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 405425397 and 405425406.

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, 59316 + ... + 65796.

It is an arithmetic number, because the mean of its divisors is an integer number (21280406).

Almost surely, 2405425436 is an apocalyptic number.

It is an amenable number.

405425436 is an abundant number, since it is smaller than the sum of its proper divisors (616034052).

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

405425436 is a wasteful number, since it uses less digits than its factorization.

405425436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6902 (or 6900 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

The square root of 405425436 is about 20135.1790655062. The cubic root of 405425436 is about 740.1225971703.

The spelling of 405425436 in words is "four hundred five million, four hundred twenty-five thousand, four hundred thirty-six".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 401 802 1203 1604 2406 4812 5213 6481 10426 12962 15639 19443 20852 25924 31278 38886 62556 77772 84253 168506 252759 337012 505518 1011036 2598881 5197762 7796643 10395524 15593286 31186572 33785453 67570906 101356359 135141812 202712718 405425436