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68422247370 = 2335318174701
BaseRepresentation
bin111111101110010010…
…001010001111001010
320112121110112022011000
4333232102022033022
52110112043403440
651233250115430
74641365335521
oct775622121712
9215543468130
1068422247370
1127021636184
121131657bb76
1365b5600c09
1434512734b8
151ba6d58730
hexfee48a3ca

68422247370 has 64 divisors (see below), whose sum is σ = 188345134080. Its totient is φ = 17657352000.

The previous prime is 68422247353. The next prime is 68422247371. The reversal of 68422247370 is 7374222486.

It is a super-2 number, since 2×684222473702 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (68422247371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4078981 + ... + 4095720.

It is an arithmetic number, because the mean of its divisors is an integer number (2942892720).

Almost surely, 268422247370 is an apocalyptic number.

68422247370 is an abundant number, since it is smaller than the sum of its proper divisors (119922886710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68422247370 is a wasteful number, since it uses less digits than its factorization.

68422247370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8174748 (or 8174742 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 45.

The spelling of 68422247370 in words is "sixty-eight billion, four hundred twenty-two million, two hundred forty-seven thousand, three hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 31 45 54 62 90 93 135 155 186 270 279 310 465 558 837 930 1395 1674 2790 4185 8370 8174701 16349402 24524103 40873505 49048206 73572309 81747010 122620515 147144618 220716927 245241030 253415731 367861545 441433854 506831462 735723090 760247193 1103584635 1267078655 1520494386 2207169270 2280741579 2534157310 3801235965 4561483158 6842224737 7602471930 11403707895 13684449474 22807415790 34211123685 68422247370