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37142144 = 2713217101
BaseRepresentation
bin1000110110101…
…1111010000000
32120220000102222
42031223322000
534002022034
63404030212
7630463064
oct215537200
976800388
1037142144
1119a69496
1210532368
137905b00
144d0baa4
1533da12e
hex236be80

37142144 has 96 divisors (see below), whose sum is σ = 85676940. Its totient is φ = 15974400.

The previous prime is 37142143. The next prime is 37142177. The reversal of 37142144 is 44124173.

It can be written as a sum of positive squares in 6 ways, for example, as 20430400 + 16711744 = 4520^2 + 4088^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37142143) 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, 367694 + ... + 367794.

Almost surely, 237142144 is an apocalyptic number.

37142144 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 37142144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42838470).

37142144 is an abundant number, since it is smaller than the sum of its proper divisors (48534796).

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

37142144 is a wasteful number, since it uses less digits than its factorization.

37142144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 133 counting only the distinct ones).

The product of its digits is 2688, while the sum is 26.

The square root of 37142144 is about 6094.4354947772. The cubic root of 37142144 is about 333.6483564098.

The spelling of 37142144 in words is "thirty-seven million, one hundred forty-two thousand, one hundred forty-four".

Divisors: 1 2 4 8 13 16 17 26 32 34 52 64 68 101 104 128 136 169 202 208 221 272 338 404 416 442 544 676 808 832 884 1088 1313 1352 1616 1664 1717 1768 2176 2626 2704 2873 3232 3434 3536 5252 5408 5746 6464 6868 7072 10504 10816 11492 12928 13736 14144 17069 21008 21632 22321 22984 27472 28288 34138 42016 44642 45968 54944 68276 84032 89284 91936 109888 136552 168064 178568 183872 219776 273104 290173 357136 367744 546208 580346 714272 1092416 1160692 1428544 2184832 2321384 2857088 4642768 9285536 18571072 37142144