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139497925106 = 269748962553
BaseRepresentation
bin1000000111101010111…
…0010110100111110010
3111100001211221211110202
42001322232112213302
54241142432100411
6144030124355202
713035613541051
oct2017256264762
9440054854422
10139497925106
1154184a3a911
12230516a5b02
1310201861667
146a74a96398
153966ae883b
hex207ab969f2

139497925106 has 4 divisors (see below), whose sum is σ = 209246887662. Its totient is φ = 69748962552.

The previous prime is 139497925103. The next prime is 139497925187. The reversal of 139497925106 is 601529794931.

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., 126355366225 + 13142558881 = 355465^2 + 114641^2 .

It is a super-2 number, since 2×1394979251062 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (139497925103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34874481275 + ... + 34874481278.

Almost surely, 2139497925106 is an apocalyptic number.

139497925106 is a deficient number, since it is larger than the sum of its proper divisors (69748962556).

139497925106 is an equidigital number, since it uses as much as digits as its factorization.

139497925106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69748962555.

The product of its (nonzero) digits is 3674160, while the sum is 56.

The spelling of 139497925106 in words is "one hundred thirty-nine billion, four hundred ninety-seven million, nine hundred twenty-five thousand, one hundred six".

Divisors: 1 2 69748962553 139497925106