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154074420 = 223351915017
BaseRepresentation
bin10010010111011…
…11110100110100
3101201220210101000
421023233310310
5303420340140
623142203300
73550416363
oct1113576464
9351823330
10154074420
1179a75435
1243723530
1325bc75c6
14166697da
15d7d6a30
hex92efd34

154074420 has 96 divisors (see below), whose sum is σ = 504604800. Its totient is φ = 38921472.

The previous prime is 154074391. The next prime is 154074463. The reversal of 154074420 is 24470451.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2752 + ... + 17768.

It is an arithmetic number, because the mean of its divisors is an integer number (5256300).

Almost surely, 2154074420 is an apocalyptic number.

154074420 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 154074420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252302400).

154074420 is an abundant number, since it is smaller than the sum of its proper divisors (350530380).

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

154074420 is a wasteful number, since it uses less digits than its factorization.

154074420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15054 (or 15046 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 154074420 is about 12412.6717510776. The cubic root of 154074420 is about 536.0971690250.

The spelling of 154074420 in words is "one hundred fifty-four million, seventy-four thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 19 20 27 30 36 38 45 54 57 60 76 90 95 108 114 135 171 180 190 228 270 285 342 380 513 540 570 684 855 1026 1140 1710 2052 2565 3420 5130 10260 15017 30034 45051 60068 75085 90102 135153 150170 180204 225255 270306 285323 300340 405459 450510 540612 570646 675765 810918 855969 901020 1141292 1351530 1426615 1621836 1711938 2027295 2567907 2703060 2853230 3423876 4054590 4279845 5135814 5706460 7703721 8109180 8559690 10271628 12839535 15407442 17119380 25679070 30814884 38518605 51358140 77037210 154074420