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214021003031 = 1119456454821
BaseRepresentation
bin1100011101010010100…
…1010101011100010111
3202110102111021102210222
43013110221111130113
512001303334044111
6242153032504555
721314432336603
oct3072451253427
9673374242728
10214021003031
1182847305310
123558b24b15b
131724a0a2b84
14a5042a4503
1558793557db
hex31d4a55717

214021003031 has 4 divisors (see below), whose sum is σ = 233477457864. Its totient is φ = 194564548200.

The previous prime is 214021002997. The next prime is 214021003037. The reversal of 214021003031 is 130300120412.

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

It is not a de Polignac number, because 214021003031 - 210 = 214021002007 is a prime.

It is a super-2 number, since 2×2140210030312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214021003037) 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, 9728227400 + ... + 9728227421.

It is an arithmetic number, because the mean of its divisors is an integer number (58369364466).

Almost surely, 2214021003031 is an apocalyptic number.

214021003031 is a deficient number, since it is larger than the sum of its proper divisors (19456454833).

214021003031 is a wasteful number, since it uses less digits than its factorization.

214021003031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19456454832.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 214021003031 its reverse (130300120412), we get a palindrome (344321123443).

The spelling of 214021003031 in words is "two hundred fourteen billion, twenty-one million, three thousand, thirty-one".

Divisors: 1 11 19456454821 214021003031