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148209975 = 32521937937
BaseRepresentation
bin10001101010110…
…00000100110111
3101022212211212100
420311120010313
5300420204400
622412353143
73446523024
oct1065300467
9338784770
10148209975
117672a391
12417757b3
1324923214
141598054b
15d029100
hex8d58137

148209975 has 72 divisors (see below), whose sum is σ = 287290640. Its totient is φ = 72783360.

The previous prime is 148209967. The next prime is 148209979. The reversal of 148209975 is 579902841.

It is not a de Polignac number, because 148209975 - 23 = 148209967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 148209975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148209979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 157707 + ... + 158643.

Almost surely, 2148209975 is an apocalyptic number.

148209975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

148209975 is a deficient number, since it is larger than the sum of its proper divisors (139080665).

148209975 is a wasteful number, since it uses less digits than its factorization.

148209975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009 (or 1001 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 148209975 is about 12174.1519211812. The cubic root of 148209975 is about 529.2072817594.

The spelling of 148209975 in words is "one hundred forty-eight million, two hundred nine thousand, nine hundred seventy-five".

Divisors: 1 3 5 9 15 19 25 37 45 57 75 95 111 171 185 225 285 333 475 555 703 855 925 937 1425 1665 2109 2775 2811 3515 4275 4685 6327 8325 8433 10545 14055 17575 17803 23425 31635 34669 42165 52725 53409 70275 89015 104007 158175 160227 173345 210825 267045 312021 445075 520035 658711 801135 866725 1335225 1560105 1976133 2600175 3293555 4005675 5928399 7800525 9880665 16467775 29641995 49403325 148209975