Search a number
-
+
71002748 = 2223771769
BaseRepresentation
bin1000011101101…
…10101001111100
311221121022110102
410032312221330
5121134041443
611013500232
71521341045
oct416665174
9157538412
1071002748
1137096463
121b941678
131193007b
1496038cc
156377cb8
hex43b6a7c

71002748 has 12 divisors (see below), whose sum is σ = 129657360. Its totient is φ = 33957792.

The previous prime is 71002747. The next prime is 71002777. The reversal of 71002748 is 84720017.

It is a self number, because there is not a number n which added to its sum of digits gives 71002748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71002747) 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, 385793 + ... + 385976.

It is an arithmetic number, because the mean of its divisors is an integer number (10804780).

Almost surely, 271002748 is an apocalyptic number.

It is an amenable number.

71002748 is a deficient number, since it is larger than the sum of its proper divisors (58654612).

71002748 is a wasteful number, since it uses less digits than its factorization.

71002748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771796 (or 771794 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 71002748 is about 8426.3128353984. The cubic root of 71002748 is about 414.0871171115.

The spelling of 71002748 in words is "seventy-one million, two thousand, seven hundred forty-eight".

Divisors: 1 2 4 23 46 92 771769 1543538 3087076 17750687 35501374 71002748