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388265253 = 3295975641
BaseRepresentation
bin10111001001000…
…111010100100101
31000001120220210120
4113021013110211
51243343442003
6102305512153
712423125445
oct2711072445
91001526716
10388265253
1118a190482
12aa042659
136259326c
14397cc125
1524146853
hex17247525

388265253 has 16 divisors (see below), whose sum is σ = 544622400. Its totient is φ = 245678720.

The previous prime is 388265249. The next prime is 388265257. The reversal of 388265253 is 352562883.

It is an interprime number because it is at equal distance from previous prime (388265249) and next prime (388265257).

It is not a de Polignac number, because 388265253 - 22 = 388265249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388265257) 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, 32688 + ... + 42953.

It is an arithmetic number, because the mean of its divisors is an integer number (34038900).

Almost surely, 2388265253 is an apocalyptic number.

It is an amenable number.

388265253 is a deficient number, since it is larger than the sum of its proper divisors (156357147).

388265253 is a wasteful number, since it uses less digits than its factorization.

388265253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75732.

The product of its digits is 345600, while the sum is 42.

The square root of 388265253 is about 19704.4475436385. The cubic root of 388265253 is about 729.5294728513.

The spelling of 388265253 in words is "three hundred eighty-eight million, two hundred sixty-five thousand, two hundred fifty-three".

Divisors: 1 3 29 59 87 177 1711 5133 75641 226923 2193589 4462819 6580767 13388457 129421751 388265253