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40105248 = 253417763
BaseRepresentation
bin1001100011111…
…1010100100000
32210110120001120
42120333110200
540231331443
63551332240
7664613631
oct230772440
983416046
1040105248
1120702737
1211521080
138402721
14547d888
1537c3083
hex263f520

40105248 has 24 divisors (see below), whose sum is σ = 105276528. Its totient is φ = 13368384.

The previous prime is 40105229. The next prime is 40105267. The reversal of 40105248 is 84250104.

It is an interprime number because it is at equal distance from previous prime (40105229) and next prime (40105267).

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208786 + ... + 208977.

It is an arithmetic number, because the mean of its divisors is an integer number (4386522).

Almost surely, 240105248 is an apocalyptic number.

40105248 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40105248 is an abundant number, since it is smaller than the sum of its proper divisors (65171280).

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

40105248 is a wasteful number, since it uses less digits than its factorization.

40105248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417776 (or 417768 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 40105248 is about 6332.8704392242. The cubic root of 40105248 is about 342.2948792215.

The spelling of 40105248 in words is "forty million, one hundred five thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 417763 835526 1253289 1671052 2506578 3342104 5013156 6684208 10026312 13368416 20052624 40105248