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40025030 = 2531129113
BaseRepresentation
bin1001100010101…
…1101111000110
32210022111000112
42120223233012
540221300110
63545513022
7664131023
oct230535706
983274015
1040025030
1120658441
12114a2772
1383a5066
14545c54a
1537a9405
hex262bbc6

40025030 has 16 divisors (see below), whose sum is σ = 74369664. Its totient is φ = 15493440.

The previous prime is 40025023. The next prime is 40025033. The reversal of 40025030 is 3052004.

It is a junction number, because it is equal to n+sod(n) for n = 40024996 and 40025014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40025033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64247 + ... + 64866.

It is an arithmetic number, because the mean of its divisors is an integer number (4648104).

Almost surely, 240025030 is an apocalyptic number.

40025030 is a deficient number, since it is larger than the sum of its proper divisors (34344634).

40025030 is a wasteful number, since it uses less digits than its factorization.

40025030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129151.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 40025030 is about 6326.5338061216. The cubic root of 40025030 is about 342.0665089579.

Adding to 40025030 its reverse (3052004), we get a palindrome (43077034).

The spelling of 40025030 in words is "forty million, twenty-five thousand, thirty".

Divisors: 1 2 5 10 31 62 155 310 129113 258226 645565 1291130 4002503 8005006 20012515 40025030