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310020012002 = 2155010006001
BaseRepresentation
bin1001000001011101010…
…00011111011111100010
31002122012211100101011202
410200232220133133202
520034410110341002
6354230552441202
731253404423331
oct4405650373742
91078184311152
10310020012002
1110a52a23a658
12501010a9202
1323308a04aac
141100dbd3d18
1580e71c1502
hex482ea1f7e2

310020012002 has 4 divisors (see below), whose sum is σ = 465030018006. Its totient is φ = 155010006000.

The previous prime is 310020011999. The next prime is 310020012031. The reversal of 310020012002 is 200210020013.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 234729591121 + 75290420881 = 484489^2 + 274391^2 .

It is a super-2 number, since 2×3100200120022 (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77505002999 + ... + 77505003002.

Almost surely, 2310020012002 is an apocalyptic number.

310020012002 is a deficient number, since it is larger than the sum of its proper divisors (155010006004).

310020012002 is a wasteful number, since it uses less digits than its factorization.

310020012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155010006003.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 310020012002 its reverse (200210020013), we get a palindrome (510230032015).

The spelling of 310020012002 in words is "three hundred ten billion, twenty million, twelve thousand, two".

Divisors: 1 2 155010006001 310020012002