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130023120 = 2435541763
BaseRepresentation
bin1111011111111…
…11111011010000
3100001122212012010
413233333323100
5231241214440
620522502520
73136115103
oct757777320
9301585163
10130023120
1167438327
1237664a40
1320c26176
14133a873a
15b635580
hex7bffed0

130023120 has 40 divisors (see below), whose sum is σ = 403072416. Its totient is φ = 34672768.

The previous prime is 130023119. The next prime is 130023121. The reversal of 130023120 is 21320031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (130023119) and next prime (130023121).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 130023096 and 130023105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130023121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270642 + ... + 271121.

Almost surely, 2130023120 is an apocalyptic number.

130023120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130023120 is an abundant number, since it is smaller than the sum of its proper divisors (273049296).

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

130023120 is a wasteful number, since it uses less digits than its factorization.

130023120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541779 (or 541773 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 130023120 is about 11402.7680849871. The cubic root of 130023120 is about 506.6097312138.

Adding to 130023120 its reverse (21320031), we get a palindrome (151343151).

The spelling of 130023120 in words is "one hundred thirty million, twenty-three thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 541763 1083526 1625289 2167052 2708815 3250578 4334104 5417630 6501156 8126445 8668208 10835260 13002312 16252890 21670520 26004624 32505780 43341040 65011560 130023120