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13453401490 = 256217216397
BaseRepresentation
bin11001000011110001…
…01001110110010010
31021201120221121101021
430201320221312102
5210023032321430
610102545030054
7654250011604
oct144170516622
937646847337
1013453401490
115784104731
12273562532a
1313652bc9c9
14918a71174
1553b16307a
hex321e29d92

13453401490 has 16 divisors (see below), whose sum is σ = 24220129752. Its totient is φ = 5380470144.

The previous prime is 13453401389. The next prime is 13453401491. The reversal of 13453401490 is 9410435431.

It can be written as a sum of positive squares in 4 ways, for example, as 12946115961 + 507285529 = 113781^2 + 22523^2 .

It is a super-2 number, since 2×134534014902 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13453401491) 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, 46029 + ... + 170368.

Almost surely, 213453401490 is an apocalyptic number.

13453401490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13453401490 is a deficient number, since it is larger than the sum of its proper divisors (10766728262).

13453401490 is a wasteful number, since it uses less digits than its factorization.

13453401490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222621.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 13453401490 in words is "thirteen billion, four hundred fifty-three million, four hundred one thousand, four hundred ninety".

Divisors: 1 2 5 10 6217 12434 31085 62170 216397 432794 1081985 2163970 1345340149 2690680298 6726700745 13453401490