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3100400161 = 23271497417
BaseRepresentation
bin1011100011001100…
…0101101000100001
322000001221122110121
42320303011220201
522322200301121
61231352200241
7136554652345
oct27063055041
98001848417
103100400161
111351105591
12726399081
133a5438211
14215a9d625
151322c7141
hexb8cc5a21

3100400161 has 8 divisors (see below), whose sum is σ = 3247144704. Its totient is φ = 2954651040.

The previous prime is 3100400141. The next prime is 3100400231. The reversal of 3100400161 is 1610040013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3100400161 - 211 = 3100398113 is a prime.

It is a super-2 number, since 2×31004001612 = 19224962316657651842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3100400111) 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, 242476 + ... + 254941.

It is an arithmetic number, because the mean of its divisors is an integer number (405893088).

Almost surely, 23100400161 is an apocalyptic number.

It is an amenable number.

3100400161 is a deficient number, since it is larger than the sum of its proper divisors (146744543).

3100400161 is a wasteful number, since it uses less digits than its factorization.

3100400161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497711.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3100400161 is about 55681.2370642032. The cubic root of 3100400161 is about 1458.1624723369.

Adding to 3100400161 its reverse (1610040013), we get a palindrome (4710440174).

The spelling of 3100400161 in words is "three billion, one hundred million, four hundred thousand, one hundred sixty-one".

Divisors: 1 23 271 6233 497417 11440591 134800007 3100400161