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245233310220 = 223256720334437
BaseRepresentation
bin1110010001100100001…
…0110101101000001100
3212102222201201221000100
43210121002311220030
513004214211411340
6304354132531100
723501052513003
oct3443102655014
9772881657010
10245233310220
11950038a0708
123b640180a90
131a18267b1b2
14bc25723c3a
1565a45eb830
hex39190b5a0c

245233310220 has 72 divisors (see below), whose sum is σ = 754977014064. Its totient is φ = 64419493248.

The previous prime is 245233310173. The next prime is 245233310293. The reversal of 245233310220 is 22013332542.

245233310220 is a `hidden beast` number, since 2 + 4 + 523 + 33 + 102 + 2 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10155159 + ... + 10179278.

It is an arithmetic number, because the mean of its divisors is an integer number (10485791862).

Almost surely, 2245233310220 is an apocalyptic number.

245233310220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245233310220 is an abundant number, since it is smaller than the sum of its proper divisors (509743703844).

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

245233310220 is a wasteful number, since it uses less digits than its factorization.

245233310220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20334519 (or 20334514 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 245233310220 its reverse (22013332542), we get a palindrome (267246642762).

The spelling of 245233310220 in words is "two hundred forty-five billion, two hundred thirty-three million, three hundred ten thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 67 90 134 180 201 268 335 402 603 670 804 1005 1206 1340 2010 2412 3015 4020 6030 12060 20334437 40668874 61003311 81337748 101672185 122006622 183009933 203344370 244013244 305016555 366019866 406688740 610033110 732039732 915049665 1220066220 1362407279 1830099330 2724814558 3660198660 4087221837 5449629116 6812036395 8174443674 12261665511 13624072790 16348887348 20436109185 24523331022 27248145580 40872218370 49046662044 61308327555 81744436740 122616655110 245233310220