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70428160 = 295114161
BaseRepresentation
bin1000011001010…
…10011000000000
311220112010021101
410030222120000
5121012200120
610553304144
71513425625
oct414523000
9156463241
1070428160
11368337a0
121b705054
131178b68a
1494d434c
1562b290a
hex432a600

70428160 has 160 divisors (see below), whose sum is σ = 191800224. Its totient is φ = 24576000.

The previous prime is 70428157. The next prime is 70428167. The reversal of 70428160 is 6182407.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70428167) 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, 1154530 + ... + 1154590.

Almost surely, 270428160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70428160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95900112).

70428160 is an abundant number, since it is smaller than the sum of its proper divisors (121372064).

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

70428160 is a wasteful number, since it uses less digits than its factorization.

70428160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 70428160 is about 8392.1487117424. The cubic root of 70428160 is about 412.9670937830.

The spelling of 70428160 in words is "seventy million, four hundred twenty-eight thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 41 44 55 61 64 80 82 88 110 122 128 160 164 176 205 220 244 256 305 320 328 352 410 440 451 488 512 610 640 656 671 704 820 880 902 976 1220 1280 1312 1342 1408 1640 1760 1804 1952 2255 2440 2501 2560 2624 2684 2816 3280 3355 3520 3608 3904 4510 4880 5002 5248 5368 5632 6560 6710 7040 7216 7808 9020 9760 10004 10496 10736 12505 13120 13420 14080 14432 15616 18040 19520 20008 20992 21472 25010 26240 26840 27511 28160 28864 31232 36080 39040 40016 42944 50020 52480 53680 55022 57728 72160 78080 80032 85888 100040 104960 107360 110044 115456 137555 144320 156160 160064 171776 200080 214720 220088 230912 275110 288640 320128 343552 400160 429440 440176 550220 577280 640256 800320 858880 880352 1100440 1154560 1280512 1600640 1717760 1760704 2200880 3201280 3521408 4401760 6402560 7042816 8803520 14085632 17607040 35214080 70428160