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71940376 = 23431631283
BaseRepresentation
bin1000100100110…
…11100100011000
312000100221122101
410102123210120
5121404043001
611045533144
71532324464
oct422334430
9160327571
1071940376
1137676962
12201141b4
1311b9aa91
1497a94a4
1564b0a01
hex449b918

71940376 has 32 divisors (see below), whose sum is σ = 138980160. Its totient is φ = 34890912.

The previous prime is 71940373. The next prime is 71940397. The reversal of 71940376 is 67304917.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71940371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55431 + ... + 56713.

It is an arithmetic number, because the mean of its divisors is an integer number (4343130).

Almost surely, 271940376 is an apocalyptic number.

It is an amenable number.

71940376 is a deficient number, since it is larger than the sum of its proper divisors (67039784).

71940376 is a wasteful number, since it uses less digits than its factorization.

71940376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495 (or 1491 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 71940376 is about 8481.7672686770. The cubic root of 71940376 is about 415.9018968617.

The spelling of 71940376 in words is "seventy-one million, nine hundred forty thousand, three hundred seventy-six".

Divisors: 1 2 4 8 43 86 163 172 326 344 652 1283 1304 2566 5132 7009 10264 14018 28036 55169 56072 110338 209129 220676 418258 441352 836516 1673032 8992547 17985094 35970188 71940376