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3130213445 = 57983307311
BaseRepresentation
bin1011101010010011…
…0100010001000101
322002011001022121022
42322210310101011
522402313312240
61234335200525
7140366242502
oct27244642105
98064038538
103130213445
111366a18767
12734376145
133ab676208
14219a204a9
15134c159b5
hexba934445

3130213445 has 32 divisors (see below), whose sum is σ = 3874590720. Its totient is φ = 2426898240.

The previous prime is 3130213439. The next prime is 3130213447. The reversal of 3130213445 is 5443120313.

It is not a de Polignac number, because 3130213445 - 26 = 3130213381 is a prime.

It is a super-2 number, since 2×31302134452 = 19596472422517536050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130213447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10064840 + ... + 10065150.

It is an arithmetic number, because the mean of its divisors is an integer number (121080960).

Almost surely, 23130213445 is an apocalyptic number.

It is an amenable number.

3130213445 is a deficient number, since it is larger than the sum of its proper divisors (744377275).

3130213445 is a wasteful number, since it uses less digits than its factorization.

3130213445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 3130213445 is about 55948.3104749375. The cubic root of 3130213445 is about 1462.8214417033.

Adding to 3130213445 its reverse (5443120313), we get a palindrome (8573333758).

The spelling of 3130213445 in words is "three billion, one hundred thirty million, two hundred thirteen thousand, four hundred forty-five".

Divisors: 1 5 79 83 307 311 395 415 1535 1555 6557 24253 24569 25481 25813 32785 95477 121265 122845 127405 129065 477385 2012999 2039227 7542683 7924591 10064995 10196135 37713415 39622955 626042689 3130213445