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38707340 = 22571511831
BaseRepresentation
bin1001001110101…
…0000010001100
32200211112111012
42103222002030
534402113330
63501344352
7650002250
oct223520214
980745435
1038707340
111a938441
1210b680b8
138033369
1451d8260
1535e8c95
hex24ea08c

38707340 has 48 divisors (see below), whose sum is σ = 93563904. Its totient is φ = 13176000.

The previous prime is 38707337. The next prime is 38707343. The reversal of 38707340 is 4370783.

It is an interprime number because it is at equal distance from previous prime (38707337) and next prime (38707343).

It is a junction number, because it is equal to n+sod(n) for n = 38707297 and 38707306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38707343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20225 + ... + 22055.

It is an arithmetic number, because the mean of its divisors is an integer number (1949248).

Almost surely, 238707340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38707340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46781952).

38707340 is an abundant number, since it is smaller than the sum of its proper divisors (54856564).

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

38707340 is a wasteful number, since it uses less digits than its factorization.

38707340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998 (or 1996 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 38707340 is about 6221.5223217473. The cubic root of 38707340 is about 338.2707469684.

The spelling of 38707340 in words is "thirty-eight million, seven hundred seven thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 151 302 604 755 1057 1510 1831 2114 3020 3662 4228 5285 7324 9155 10570 12817 18310 21140 25634 36620 51268 64085 128170 256340 276481 552962 1105924 1382405 1935367 2764810 3870734 5529620 7741468 9676835 19353670 38707340