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245950920 = 233251674091
BaseRepresentation
bin11101010100011…
…10100111001000
3122010210121020100
432222032213020
51000430412140
640223325400
76044356035
oct1652164710
9563717210
10245950920
11116918626
126a450860
133bc556b7
142494438c
15168d4530
hexea8e9c8

245950920 has 96 divisors (see below), whose sum is σ = 804323520. Its totient is φ = 65178240.

The previous prime is 245950907. The next prime is 245950921. The reversal of 245950920 is 29059542.

It is a happy number.

245950920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (245950921) 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, 58075 + ... + 62165.

It is an arithmetic number, because the mean of its divisors is an integer number (8378370).

Almost surely, 2245950920 is an apocalyptic number.

245950920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245950920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402161760).

245950920 is an abundant number, since it is smaller than the sum of its proper divisors (558372600).

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

245950920 is a wasteful number, since it uses less digits than its factorization.

245950920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275 (or 4268 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 245950920 is about 15682.8224500566. The cubic root of 245950920 is about 626.5409825406.

The spelling of 245950920 in words is "two hundred forty-five million, nine hundred fifty thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 167 180 334 360 501 668 835 1002 1336 1503 1670 2004 2505 3006 3340 4008 4091 5010 6012 6680 7515 8182 10020 12024 12273 15030 16364 20040 20455 24546 30060 32728 36819 40910 49092 60120 61365 73638 81820 98184 122730 147276 163640 184095 245460 294552 368190 490920 683197 736380 1366394 1472760 2049591 2732788 3415985 4099182 5465576 6148773 6831970 8198364 10247955 12297546 13663940 16396728 20495910 24595092 27327880 30743865 40991820 49190184 61487730 81983640 122975460 245950920