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100312532 = 2225078133
BaseRepresentation
bin1011111101010…
…10010111010100
320222202101220222
411332222113110
5201140000112
613542013512
72325433235
oct576522724
9228671828
10100312532
1151695321
1229717298
1317a22b38
14d47308c
158c17372
hex5faa5d4

100312532 has 6 divisors (see below), whose sum is σ = 175546938. Its totient is φ = 50156264.

The previous prime is 100312519. The next prime is 100312549. The reversal of 100312532 is 235213001.

It can be written as a sum of positive squares in only one way, i.e., 98684356 + 1628176 = 9934^2 + 1276^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100312532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12539063 + ... + 12539070.

It is an arithmetic number, because the mean of its divisors is an integer number (29257823).

Almost surely, 2100312532 is an apocalyptic number.

It is an amenable number.

100312532 is a deficient number, since it is larger than the sum of its proper divisors (75234406).

100312532 is a wasteful number, since it uses less digits than its factorization.

100312532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25078137 (or 25078135 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 100312532 is about 10015.6144095108. The cubic root of 100312532 is about 464.6419288335.

Adding to 100312532 its reverse (235213001), we get a palindrome (335525533).

The spelling of 100312532 in words is "one hundred million, three hundred twelve thousand, five hundred thirty-two".

Divisors: 1 2 4 25078133 50156266 100312532