Search a number
-
+
148785428 = 22111719329
BaseRepresentation
bin10001101111001…
…00100100010100
3101100222002020102
420313210210110
5301042113203
622432553232
73454440521
oct1067444424
9340862212
10148785428
1176a92770
12419b2818
1324a9511c
1415a90148
15d0de888
hex8de4914

148785428 has 96 divisors (see below), whose sum is σ = 328406400. Its totient is φ = 58222080.

The previous prime is 148785421. The next prime is 148785443. The reversal of 148785428 is 824587841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148785421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5130518 + ... + 5130546.

It is an arithmetic number, because the mean of its divisors is an integer number (3420900).

Almost surely, 2148785428 is an apocalyptic number.

It is an amenable number.

148785428 is an abundant number, since it is smaller than the sum of its proper divisors (179620972).

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

148785428 is a wasteful number, since it uses less digits than its factorization.

148785428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 78 counting only the distinct ones).

The product of its digits is 573440, while the sum is 47.

The square root of 148785428 is about 12197.7632375776. The cubic root of 148785428 is about 529.8913127076.

The spelling of 148785428 in words is "one hundred forty-eight million, seven hundred eighty-five thousand, four hundred twenty-eight".

Divisors: 1 2 4 11 17 19 22 29 34 38 44 58 68 76 116 187 209 319 323 361 374 418 493 551 638 646 722 748 836 986 1102 1276 1292 1444 1972 2204 3553 3971 5423 6061 6137 6859 7106 7942 9367 10469 10846 12122 12274 13718 14212 15884 18734 20938 21692 24244 24548 27436 37468 41876 67507 75449 103037 115159 116603 135014 150898 177973 198911 206074 230318 233206 270028 301796 355946 397822 412148 460636 466412 711892 795644 1282633 1957703 2188021 2565266 3381487 3915406 4376042 5130532 6762974 7830812 8752084 13525948 37196357 74392714 148785428