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148220765 = 57112311129
BaseRepresentation
bin10001101010110…
…10101101011101
3101022220101122222
420311122231131
5300421031030
622412515125
73446566340
oct1065325535
9338811588
10148220765
1176737500
124177baa5
13249280c4
1415984457
15d02c3e5
hex8d5ab5d

148220765 has 48 divisors (see below), whose sum is σ = 230845440. Its totient is φ = 89337600.

The previous prime is 148220749. The next prime is 148220791. The reversal of 148220765 is 567022841.

It is not a de Polignac number, because 148220765 - 24 = 148220749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 130721 + ... + 131849.

It is an arithmetic number, because the mean of its divisors is an integer number (4809280).

Almost surely, 2148220765 is an apocalyptic number.

It is an amenable number.

148220765 is a deficient number, since it is larger than the sum of its proper divisors (82624675).

148220765 is a wasteful number, since it uses less digits than its factorization.

148220765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194 (or 1183 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 148220765 is about 12174.5950651346. The cubic root of 148220765 is about 529.2201239180.

The spelling of 148220765 in words is "one hundred forty-eight million, two hundred twenty thousand, seven hundred sixty-five".

Divisors: 1 5 7 11 31 35 55 77 121 155 217 341 385 605 847 1085 1129 1705 2387 3751 4235 5645 7903 11935 12419 18755 26257 34999 39515 62095 86933 131285 136609 174995 244993 384989 434665 683045 956263 1224965 1924945 2694923 4234879 4781315 13474615 21174395 29644153 148220765