Search a number
-
+
38245545 = 32513247107
BaseRepresentation
bin1001000111100…
…1010010101001
32122222002000200
42101321102221
534242324140
63443422413
7643040022
oct221712251
978862020
1038245545
111a652498
1210984a09
137c01100
145117c49
153557030
hex24794a9

38245545 has 72 divisors (see below), whose sum is σ = 73996416. Its totient is φ = 18255744.

The previous prime is 38245513. The next prime is 38245547. The reversal of 38245545 is 54554283.

It is not a de Polignac number, because 38245545 - 25 = 38245513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38245547) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 357382 + ... + 357488.

It is an arithmetic number, because the mean of its divisors is an integer number (1027728).

Almost surely, 238245545 is an apocalyptic number.

It is an amenable number.

38245545 is a deficient number, since it is larger than the sum of its proper divisors (35750871).

38245545 is a wasteful number, since it uses less digits than its factorization.

38245545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 175 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 38245545 is about 6184.2982625355. The cubic root of 38245545 is about 336.9201235962.

The spelling of 38245545 in words is "thirty-eight million, two hundred forty-five thousand, five hundred forty-five".

Divisors: 1 3 5 9 13 15 39 45 47 65 107 117 141 169 195 235 321 423 507 535 585 611 705 845 963 1391 1521 1605 1833 2115 2535 3055 4173 4815 5029 5499 6955 7605 7943 9165 12519 15087 18083 20865 23829 25145 27495 39715 45261 54249 62595 65377 71487 75435 90415 119145 162747 196131 226305 271245 326885 357435 588393 813735 849901 980655 2549703 2941965 4249505 7649109 12748515 38245545