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130420532 = 2211171131543
BaseRepresentation
bin1111100011000…
…00111100110100
3100002102001100002
413301200330310
5231341424112
620535210432
73142361534
oct761407464
9302361302
10130420532
1167689970
1237816a18
1321035018
141346d4c4
15b6b31c2
hex7c60f34

130420532 has 48 divisors (see below), whose sum is σ = 266136192. Its totient is φ = 55265280.

The previous prime is 130420531. The next prime is 130420567. The reversal of 130420532 is 235024031.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130420531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83753 + ... + 85295.

It is an arithmetic number, because the mean of its divisors is an integer number (5544504).

Almost surely, 2130420532 is an apocalyptic number.

It is an amenable number.

130420532 is an abundant number, since it is smaller than the sum of its proper divisors (135715660).

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

130420532 is a wasteful number, since it uses less digits than its factorization.

130420532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688 (or 1686 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 130420532 is about 11420.1809092501. The cubic root of 130420532 is about 507.1253523624.

Adding to 130420532 its reverse (235024031), we get a palindrome (365444563).

The spelling of 130420532 in words is "one hundred thirty million, four hundred twenty thousand, five hundred thirty-two".

Divisors: 1 2 4 11 17 22 34 44 68 113 187 226 374 452 748 1243 1543 1921 2486 3086 3842 4972 6172 7684 16973 21131 26231 33946 42262 52462 67892 84524 104924 174359 288541 348718 577082 697436 1154164 1917949 2964103 3835898 5928206 7671796 11856412 32605133 65210266 130420532