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1023269005481 = 40913211893929
BaseRepresentation
bin11101110001111111001…
…01011110100010101001
310121211020101011101012212
432320333211132202221
5113231123331133411
62102025554014505
7133633363015112
oct16707745364251
93554211141185
101023269005481
11364a6974a138
12146396877435
1375655cc2c38
143775295b209
151b93e4b168b
hexee3f95e8a9

1023269005481 has 8 divisors (see below), whose sum is σ = 1026547938600. Its totient is φ = 1019993863680.

The previous prime is 1023269005439. The next prime is 1023269005523. The reversal of 1023269005481 is 1845009623201.

It is an interprime number because it is at equal distance from previous prime (1023269005439) and next prime (1023269005523).

It can be written as a sum of positive squares in 4 ways, for example, as 364192938256 + 659076067225 = 603484^2 + 811835^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1023269005481 is a prime.

It is a super-2 number, since 2×10232690054812 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023269004481) 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, 406676 + ... + 1487253.

It is an arithmetic number, because the mean of its divisors is an integer number (128318492325).

Almost surely, 21023269005481 is an apocalyptic number.

It is an amenable number.

1023269005481 is a deficient number, since it is larger than the sum of its proper divisors (3278933119).

1023269005481 is a wasteful number, since it uses less digits than its factorization.

1023269005481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895659.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 1023269005481 in words is "one trillion, twenty-three billion, two hundred sixty-nine million, five thousand, four hundred eighty-one".

Divisors: 1 409 1321 540289 1893929 774616961 2501880209 1023269005481