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201462123031 = 1315497086387
BaseRepresentation
bin1011101110100000010…
…1000000101000010111
3201021000020112020020021
42323220011000220113
511300043300414111
6232314520250011
720361263535241
oct2735005005027
9637006466207
10201462123031
1178492130944
1233065310907
1315cc820c030
149a72365091
1553919dad71
hex2ee8140a17

201462123031 has 4 divisors (see below), whose sum is σ = 216959209432. Its totient is φ = 185965036632.

The previous prime is 201462123001. The next prime is 201462123041. The reversal of 201462123031 is 130321264102.

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

It is a cyclic number.

It is not a de Polignac number, because 201462123031 - 217 = 201461991959 is a prime.

It is a super-2 number, since 2×2014621230312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201462122987 and 201462123005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201462123001) 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, 7748543181 + ... + 7748543206.

It is an arithmetic number, because the mean of its divisors is an integer number (54239802358).

Almost surely, 2201462123031 is an apocalyptic number.

201462123031 is a deficient number, since it is larger than the sum of its proper divisors (15497086401).

201462123031 is a wasteful number, since it uses less digits than its factorization.

201462123031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15497086400.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 201462123031 its reverse (130321264102), we get a palindrome (331783387133).

The spelling of 201462123031 in words is "two hundred one billion, four hundred sixty-two million, one hundred twenty-three thousand, thirty-one".

Divisors: 1 13 15497086387 201462123031