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60631044431 = 192029315739
BaseRepresentation
bin111000011101111001…
…000101000101001111
312210111111000011222012
4320131321011011033
51443133021410211
643504205411435
74244331242246
oct703571050517
9183444004865
1060631044431
112379370a091
12b901269b7b
135943405269
142d125db95d
15189cd53d8b
hexe1de4514f

60631044431 has 4 divisors (see below), whose sum is σ = 60631552200. Its totient is φ = 60630536664.

The previous prime is 60631044421. The next prime is 60631044479. The reversal of 60631044431 is 13444013606.

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, and also an emirpimes, since its reverse is a distinct semiprime: 13444013606 = 26722006803.

It is a cyclic number.

It is not a de Polignac number, because 60631044431 - 222 = 60626850127 is a prime.

It is a super-2 number, since 2×606310444312 (a number of 22 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 (60631044421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34160 + ... + 349898.

It is an arithmetic number, because the mean of its divisors is an integer number (15157888050).

Almost surely, 260631044431 is an apocalyptic number.

60631044431 is a deficient number, since it is larger than the sum of its proper divisors (507769).

60631044431 is a wasteful number, since it uses less digits than its factorization.

60631044431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507768.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 60631044431 in words is "sixty billion, six hundred thirty-one million, forty-four thousand, four hundred thirty-one".

Divisors: 1 192029 315739 60631044431