Search a number
-
+
10302021001 = 13974115259
BaseRepresentation
bin10011001100000110…
…00101110110001001
3222120222001220001101
421212003011312021
5132044304133001
64422132021401
7513202506436
oct114603056611
928528056041
1010302021001
114407249948
121bb6161861
13c8244511c
146da300b8d
1540466aa01
hex2660c5d89

10302021001 has 4 divisors (see below), whose sum is σ = 10376136400. Its totient is φ = 10227905604.

The previous prime is 10302020959. The next prime is 10302021017. The reversal of 10302021001 is 10012020301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10012020301 = 42192373079.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10302021001 is a prime.

It is a super-2 number, since 2×103020210012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10302021071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37057491 + ... + 37057768.

It is an arithmetic number, because the mean of its divisors is an integer number (2594034100).

Almost surely, 210302021001 is an apocalyptic number.

It is an amenable number.

10302021001 is a deficient number, since it is larger than the sum of its proper divisors (74115399).

10302021001 is an equidigital number, since it uses as much as digits as its factorization.

10302021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74115398.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 10302021001 its reverse (10012020301), we get a palindrome (20314041302).

The spelling of 10302021001 in words is "ten billion, three hundred two million, twenty-one thousand, one".

Divisors: 1 139 74115259 10302021001