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12958055445 = 3523157239233
BaseRepresentation
bin11000001000101110…
…00011110000010101
31020110001212102100110
430010113003300111
5203014230233240
65541452033233
7636053440206
oct140427036025
936401772313
1012958055445
11554a536935
122617762819
1312b67a703a
148acd6b5ad
1550c918c80
hex3045c3c15

12958055445 has 32 divisors (see below), whose sum is σ = 21772207872. Its totient is φ = 6568353792.

The previous prime is 12958055443. The next prime is 12958055447. The reversal of 12958055445 is 54455085921.

It is an interprime number because it is at equal distance from previous prime (12958055443) and next prime (12958055447).

It is not a de Polignac number, because 12958055445 - 21 = 12958055443 is a prime.

It is a super-2 number, since 2×129580554452 (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 12958055394 and 12958055403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12958055443) 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, 65452 + ... + 173781.

It is an arithmetic number, because the mean of its divisors is an integer number (680381496).

Almost surely, 212958055445 is an apocalyptic number.

12958055445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12958055445 is a deficient number, since it is larger than the sum of its proper divisors (8814152427).

12958055445 is a wasteful number, since it uses less digits than its factorization.

12958055445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239421.

The product of its (nonzero) digits is 1440000, while the sum is 48.

The spelling of 12958055445 in words is "twelve billion, nine hundred fifty-eight million, fifty-five thousand, four hundred forty-five".

Divisors: 1 3 5 15 23 69 115 157 345 471 785 2355 3611 10833 18055 54165 239233 717699 1196165 3588495 5502359 16507077 27511795 37559581 82535385 112678743 187797905 563393715 863870363 2591611089 4319351815 12958055445