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100102897 = 831206059
BaseRepresentation
bin1011111011101…
…11001011110001
320222100202100201
411331313023301
5201111243042
613533315201
72323601116
oct575671361
9228322321
10100102897
1151561874
1229635b01
131797b5ab
14d41a90d
158bc51b7
hex5f772f1

100102897 has 4 divisors (see below), whose sum is σ = 101309040. Its totient is φ = 98896756.

The previous prime is 100102841. The next prime is 100102901. The reversal of 100102897 is 798201001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100102897 - 211 = 100100849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100102837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602947 + ... + 603112.

It is an arithmetic number, because the mean of its divisors is an integer number (25327260).

Almost surely, 2100102897 is an apocalyptic number.

It is an amenable number.

100102897 is a deficient number, since it is larger than the sum of its proper divisors (1206143).

100102897 is an equidigital number, since it uses as much as digits as its factorization.

100102897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206142.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 100102897 is about 10005.1435272064. The cubic root of 100102897 is about 464.3180306432.

Adding to 100102897 its reverse (798201001), we get a palindrome (898303898).

The spelling of 100102897 in words is "one hundred million, one hundred two thousand, eight hundred ninety-seven".

Divisors: 1 83 1206059 100102897