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122168448 = 2732173613
BaseRepresentation
bin1110100100000…
…10010010000000
322111212210121100
413102002102000
5222233342243
620042254400
73012262143
oct722022200
9274783540
10122168448
1162a62a66
1234ab7400
131c405c2c
141232205a
15aad30d3
hex7482480

122168448 has 96 divisors (see below), whose sum is σ = 354161340. Its totient is φ = 40421376.

The previous prime is 122168429. The next prime is 122168467. The reversal of 122168448 is 844861221.

It is an interprime number because it is at equal distance from previous prime (122168429) and next prime (122168467).

It can be written as a sum of positive squares in 2 ways, for example, as 120297024 + 1871424 = 10968^2 + 1368^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198990 + ... + 199602.

Almost surely, 2122168448 is an apocalyptic number.

122168448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122168448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177080670).

122168448 is an abundant number, since it is smaller than the sum of its proper divisors (231992892).

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

122168448 is a wasteful number, since it uses less digits than its factorization.

122168448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806 (or 791 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 122168448 is about 11052.9836695799. The cubic root of 122168448 is about 496.1957257378.

The spelling of 122168448 in words is "one hundred twenty-two million, one hundred sixty-eight thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 173 192 288 346 384 519 576 613 692 1038 1152 1226 1384 1557 1839 2076 2452 2768 3114 3678 4152 4904 5517 5536 6228 7356 8304 9808 11034 11072 12456 14712 16608 19616 22068 22144 24912 29424 33216 39232 44136 49824 58848 66432 78464 88272 99648 106049 117696 176544 199296 212098 235392 318147 353088 424196 636294 706176 848392 954441 1272588 1696784 1908882 2545176 3393568 3817764 5090352 6787136 7635528 10180704 13574272 15271056 20361408 30542112 40722816 61084224 122168448