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3101031012 = 223258419251
BaseRepresentation
bin1011100011010101…
…1111101001100100
322000010010200211110
42320311133221210
522322330443022
61231413505020
7136563220512
oct27065375144
98003120743
103101031012
1113514a6552
12726642170
133a55c93c1
14215bc54b2
1513239e00c
hexb8d5fa64

3101031012 has 12 divisors (see below), whose sum is σ = 7235739056. Its totient is φ = 1033677000.

The previous prime is 3101030951. The next prime is 3101031041. The reversal of 3101031012 is 2101301013.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 258419251 = 3101031012 / (3 + 1 + 0 + 1 + 0 + 3 + 1 + 0 + 1 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129209614 + ... + 129209637.

Almost surely, 23101031012 is an apocalyptic number.

It is an amenable number.

3101031012 is an abundant number, since it is smaller than the sum of its proper divisors (4134708044).

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

3101031012 is a wasteful number, since it uses less digits than its factorization.

3101031012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258419258 (or 258419256 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 3101031012 is about 55686.9016196807. The cubic root of 3101031012 is about 1458.2613650413.

Adding to 3101031012 its reverse (2101301013), we get a palindrome (5202332025).

The spelling of 3101031012 in words is "three billion, one hundred one million, thirty-one thousand, twelve".

Divisors: 1 2 3 4 6 12 258419251 516838502 775257753 1033677004 1550515506 3101031012