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40897701 = 3213349553
BaseRepresentation
bin1001110000000…
…0110010100101
32211221211002200
42130000302211
540432211301
64020325113
71004424165
oct234006245
984854080
1040897701
11210a4059
1211843799
13861c330
1456085a5
1538ccc86
hex2700ca5

40897701 has 12 divisors (see below), whose sum is σ = 63618828. Its totient is φ = 25167744.

The previous prime is 40897673. The next prime is 40897729. The reversal of 40897701 is 10779804.

It is an interprime number because it is at equal distance from previous prime (40897673) and next prime (40897729).

It can be written as a sum of positive squares in 2 ways, for example, as 9828225 + 31069476 = 3135^2 + 5574^2 .

It is not a de Polignac number, because 40897701 - 211 = 40895653 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40897771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174660 + ... + 174893.

It is an arithmetic number, because the mean of its divisors is an integer number (5301569).

Almost surely, 240897701 is an apocalyptic number.

It is an amenable number.

40897701 is a deficient number, since it is larger than the sum of its proper divisors (22721127).

40897701 is a wasteful number, since it uses less digits than its factorization.

40897701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349572 (or 349569 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 40897701 is about 6395.1310385324. The cubic root of 40897701 is about 344.5346972382.

The spelling of 40897701 in words is "forty million, eight hundred ninety-seven thousand, seven hundred one".

Divisors: 1 3 9 13 39 117 349553 1048659 3145977 4544189 13632567 40897701