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245791346680 = 23511558616697
BaseRepresentation
bin1110010011101001001…
…1100100111111111000
3212111102121210010010101
43210322103210333320
513011340041043210
6304525345325144
723520636655315
oct3447223447770
9774377703111
10245791346680
119526a897770
123b7770367b4
131a241173599
14bc798a5d0c
1565d85caa3a
hex393a4e4ff8

245791346680 has 32 divisors (see below), whose sum is σ = 603306033840. Its totient is φ = 89378671360.

The previous prime is 245791346629. The next prime is 245791346699. The reversal of 245791346680 is 86643197542.

It is a super-2 number, since 2×2457913466802 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279307909 + ... + 279308788.

It is a 1-persistent number, because it is pandigital, but 2⋅245791346680 = 491582693360 is not.

Almost surely, 2245791346680 is an apocalyptic number.

245791346680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245791346680 is an abundant number, since it is smaller than the sum of its proper divisors (357514687160).

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

245791346680 is a wasteful number, since it uses less digits than its factorization.

245791346680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558616719 (or 558616715 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 245791346680 in words is "two hundred forty-five billion, seven hundred ninety-one million, three hundred forty-six thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 558616697 1117233394 2234466788 2793083485 4468933576 5586166970 6144783667 11172333940 12289567334 22344667880 24579134668 30723918335 49158269336 61447836670 122895673340 245791346680