Search a number
-
+
131030525052 = 223272592312541
BaseRepresentation
bin111101000001000000…
…1110010010001111100
3110112012202001100020100
41322002001302101330
54121322303300202
6140110010521100
712316026041400
oct1720201622174
9415182040210
10131030525052
115062a351929
1221489a36190
13c48253b97b
1464b02c1100
15361d57441c
hex1e8207247c

131030525052 has 108 divisors (see below), whose sum is σ = 385387917096. Its totient is φ = 37427987520.

The previous prime is 131030525047. The next prime is 131030525069. The reversal of 131030525052 is 250525030131.

It is a happy number.

131030525052 is a `hidden beast` number, since 1 + 3 + 103 + 0 + 52 + 505 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10441902 + ... + 10454442.

Almost surely, 2131030525052 is an apocalyptic number.

131030525052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131030525052 is an abundant number, since it is smaller than the sum of its proper divisors (254357392044).

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

131030525052 is a wasteful number, since it uses less digits than its factorization.

131030525052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18488 (or 18476 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

Adding to 131030525052 its reverse (250525030131), we get a palindrome (381555555183).

The spelling of 131030525052 in words is "one hundred thirty-one billion, thirty million, five hundred twenty-five thousand, fifty-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 49 63 84 98 126 147 196 252 294 441 588 882 1764 5923 11846 12541 17769 23692 25082 35538 37623 41461 50164 53307 71076 75246 82922 87787 106614 112869 124383 150492 165844 175574 213228 225738 248766 263361 290227 351148 373149 451476 497532 526722 580454 614509 746298 790083 870681 1053444 1160908 1229018 1492596 1580166 1741362 1843527 2458036 2612043 3160332 3482724 3687054 5224086 5530581 7374108 10448172 11061162 22122324 74280343 148560686 222841029 297121372 445682058 519962401 668523087 891364116 1039924802 1337046174 1559887203 2079849604 2674092348 3119774406 3639736807 4679661609 6239548812 7279473614 9359323218 10919210421 14558947228 18718646436 21838420842 32757631263 43676841684 65515262526 131030525052