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154968320 = 2851367139
BaseRepresentation
bin10010011110010…
…10000100000000
3101210121012120102
421033022010000
5304132441240
623213301532
73561131453
oct1117120400
9353535512
10154968320
117a525aa1
1243a948a8
132614b440
141681d49a
15d911815
hex93ca100

154968320 has 144 divisors (see below), whose sum is σ = 408636480. Its totient is φ = 55959552.

The previous prime is 154968293. The next prime is 154968323. The reversal of 154968320 is 23869451.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (154968323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1114811 + ... + 1114949.

Almost surely, 2154968320 is an apocalyptic number.

154968320 is a gapful number since it is divisible by the number (10) 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 154968320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204318240).

154968320 is an abundant number, since it is smaller than the sum of its proper divisors (253668160).

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

154968320 is a wasteful number, since it uses less digits than its factorization.

154968320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 154968320 is about 12448.6272335547. The cubic root of 154968320 is about 537.1319362284.

The spelling of 154968320 in words is "one hundred fifty-four million, nine hundred sixty-eight thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 67 80 104 128 130 134 139 160 208 256 260 268 278 320 335 416 520 536 556 640 670 695 832 871 1040 1072 1112 1280 1340 1390 1664 1742 1807 2080 2144 2224 2680 2780 3328 3484 3614 4160 4288 4355 4448 5360 5560 6968 7228 8320 8576 8710 8896 9035 9313 10720 11120 13936 14456 16640 17152 17420 17792 18070 18626 21440 22240 27872 28912 34840 35584 36140 37252 42880 44480 46565 55744 57824 69680 72280 74504 85760 88960 93130 111488 115648 121069 139360 144560 149008 177920 186260 222976 231296 242138 278720 289120 298016 372520 462592 484276 557440 578240 596032 605345 745040 968552 1114880 1156480 1192064 1210690 1490080 1937104 2312960 2384128 2421380 2980160 3874208 4842760 5960320 7748416 9685520 11920640 15496832 19371040 30993664 38742080 77484160 154968320