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1310001001 = 5478112953
BaseRepresentation
bin100111000010101…
…0000011101101001
310101021222221112121
41032011100131221
510140330013001
6333553511241
744314552621
oct11605203551
93337887477
101310001001
11612509161
12306872521
1317b52a12a
14c5da5881
157a0186a1
hex4e150769

1310001001 has 8 divisors (see below), whose sum is σ = 1314459104. Its totient is φ = 1305551520.

The previous prime is 1310000981. The next prime is 1310001067. The reversal of 1310001001 is 1001000131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1310001001 - 25 = 1310000969 is a prime.

It is a super-2 number, since 2×13100010012 = 3432205245242004002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310001101) 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, 442141 + ... + 445093.

It is an arithmetic number, because the mean of its divisors is an integer number (164307388).

Almost surely, 21310001001 is an apocalyptic number.

It is an amenable number.

1310001001 is a deficient number, since it is larger than the sum of its proper divisors (4458103).

1310001001 is an equidigital number, since it uses as much as digits as its factorization.

1310001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311.

The product of its (nonzero) digits is 3, while the sum is 7.

The square root of 1310001001 is about 36193.9359699936. The cubic root of 1310001001 is about 1094.1844600602.

Adding to 1310001001 its reverse (1001000131), we get a palindrome (2311001132).

The spelling of 1310001001 in words is "one billion, three hundred ten million, one thousand, one".

Divisors: 1 547 811 2953 443617 1615291 2394883 1310001001