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61008023 = 76737951
BaseRepresentation
bin1110100010111…
…0100010010111
311020210112021102
43220232202113
5111104224043
610015340315
71340362646
oct350564227
9136715242
1061008023
113148a25a
121852169b
13c840a2b
14816135d
1555516b8
hex3a2e897

61008023 has 4 divisors (see below), whose sum is σ = 61023648. Its totient is φ = 60992400.

The previous prime is 61008001. The next prime is 61008043. The reversal of 61008023 is 32080016.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 61008023 - 28 = 61007767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61007986 and 61008004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61008043) 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, 3698 + ... + 11648.

It is an arithmetic number, because the mean of its divisors is an integer number (15255912).

Almost surely, 261008023 is an apocalyptic number.

61008023 is a deficient number, since it is larger than the sum of its proper divisors (15625).

61008023 is an equidigital number, since it uses as much as digits as its factorization.

61008023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15624.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 61008023 is about 7810.7632789632. The cubic root of 61008023 is about 393.6669757596. Note that the first 3 decimals are identical.

Adding to 61008023 its reverse (32080016), we get a palindrome (93088039).

The spelling of 61008023 in words is "sixty-one million, eight thousand, twenty-three".

Divisors: 1 7673 7951 61008023