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42556000830 = 2357208997007
BaseRepresentation
bin100111101000100010…
…010000101000111110
311001211210121211110220
4213220202100220332
51144123314011310
631314442442210
73034402016160
oct475042205076
9131753554426
1042556000830
1117058831322
1282b7b03366
13402278b5a5
1420b9c38930
1511910c5670
hex9e8890a3e

42556000830 has 64 divisors (see below), whose sum is σ = 116782110720. Its totient is φ = 9722329344.

The previous prime is 42556000793. The next prime is 42556000831. The reversal of 42556000830 is 3800065524.

It is a super-2 number, since 2×425560008302 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42556000791 and 42556000800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42556000831) 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, 390187 + ... + 487193.

It is an arithmetic number, because the mean of its divisors is an integer number (1824720480).

Almost surely, 242556000830 is an apocalyptic number.

42556000830 is an abundant number, since it is smaller than the sum of its proper divisors (74226109890).

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

42556000830 is a wasteful number, since it uses less digits than its factorization.

42556000830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99113.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 42556000830 in words is "forty-two billion, five hundred fifty-six million, eight hundred thirty", and thus it is an aban number.

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 2089 4178 6267 10445 12534 14623 20890 29246 31335 43869 62670 73115 87738 97007 146230 194014 219345 291021 438690 485035 582042 679049 970070 1358098 1455105 2037147 2910210 3395245 4074294 6790490 10185735 20371470 202647623 405295246 607942869 1013238115 1215885738 1418533361 2026476230 2837066722 3039714345 4255600083 6079428690 7092666805 8511200166 14185333610 21278000415 42556000830