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40144151 = 1371791637
BaseRepresentation
bin1001100100100…
…0110100010111
32210112112102102
42121020310113
540234103101
63552232315
7665135225
oct231106427
983475372
1040144151
1120729993
121153b69b
138417348
14548db15
1537ce86b
hex2648d17

40144151 has 8 divisors (see below), whose sum is σ = 40687920. Its totient is φ = 39604288.

The previous prime is 40144103. The next prime is 40144183. The reversal of 40144151 is 15144104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40144151 - 210 = 40143127 is a prime.

It is a super-2 number, since 2×401441512 = 3223105719021602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40144751) 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, 23705 + ... + 25341.

It is an arithmetic number, because the mean of its divisors is an integer number (5085990).

Almost surely, 240144151 is an apocalyptic number.

40144151 is a deficient number, since it is larger than the sum of its proper divisors (543769).

40144151 is a wasteful number, since it uses less digits than its factorization.

40144151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 40144151 is about 6335.9412086919. The cubic root of 40144151 is about 342.4055213857.

Adding to 40144151 its reverse (15144104), we get a palindrome (55288255).

The spelling of 40144151 in words is "forty million, one hundred forty-four thousand, one hundred fifty-one".

Divisors: 1 137 179 1637 24523 224269 293023 40144151