Search a number
-
+
755231620 = 2251113347761
BaseRepresentation
bin101101000000111…
…110101110000100
31221122002202000111
4231000332232010
53021314402440
6202535122404
724500235313
oct5500765604
91848082014
10755231620
11358343770
12190b13404
13c0609b20
147243427a
15464824ea
hex2d03eb84

755231620 has 96 divisors (see below), whose sum is σ = 1871081856. Its totient is φ = 252441600.

The previous prime is 755231567. The next prime is 755231623. The reversal of 755231620 is 26132557.

It is not an unprimeable number, because it can be changed into a prime (755231623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 992040 + ... + 992800.

It is an arithmetic number, because the mean of its divisors is an integer number (19490436).

Almost surely, 2755231620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 755231620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (935540928).

755231620 is an abundant number, since it is smaller than the sum of its proper divisors (1115850236).

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

755231620 is a wasteful number, since it uses less digits than its factorization.

755231620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 755231620 is about 27481.4777623038. The cubic root of 755231620 is about 910.6679554293.

The spelling of 755231620 in words is "seven hundred fifty-five million, two hundred thirty-one thousand, six hundred twenty".

Divisors: 1 2 4 5 10 11 13 20 22 26 44 52 55 65 110 130 143 220 260 286 347 572 694 715 761 1388 1430 1522 1735 2860 3044 3470 3805 3817 4511 6940 7610 7634 8371 9022 9893 15220 15268 16742 18044 19085 19786 22555 33484 38170 39572 41855 45110 49465 49621 76340 83710 90220 98930 99242 108823 167420 197860 198484 217646 248105 264067 435292 496210 528134 544115 992420 1056268 1088230 1320335 2176460 2640670 2904737 3432871 5281340 5809474 6865742 11618948 13731484 14523685 17164355 29047370 34328710 37761581 58094740 68657420 75523162 151046324 188807905 377615810 755231620