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127401984 = 21935
BaseRepresentation
bin1111001100000…
…00000000000000
322212201200200000
413212000000000
5230103330414
620350400000
73104620233
oct746000000
9285650600
10127401984
1165a07aa6
1236800000
13205190b8
1412cc541a
15b2b8b09
hex7980000

127401984 has 120 divisors (see below), whose sum is σ = 381681300. Its totient is φ = 42467328.

The previous prime is 127401947. The next prime is 127402001. The reversal of 127401984 is 489104721.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a Jordan-Polya number, since it can be written as (4!)5 ⋅ (2!)4.

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

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42467327 + 42467328 + 42467329.

Almost surely, 2127401984 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 127401984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190840650).

127401984 is an abundant number, since it is smaller than the sum of its proper divisors (254279316).

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

127401984 is an frugal number, since it uses more digits than its factorization.

127401984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53 (or 5 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 127401984 is about 11287.2487347449. The cubic root of 127401984 is about 503.1823476881.

Multiplying 127401984 by its sum of digits (36), we get a 7-th power (4586471424 = 247).

The spelling of 127401984 in words is "one hundred twenty-seven million, four hundred one thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 243 256 288 324 384 432 486 512 576 648 768 864 972 1024 1152 1296 1536 1728 1944 2048 2304 2592 3072 3456 3888 4096 4608 5184 6144 6912 7776 8192 9216 10368 12288 13824 15552 16384 18432 20736 24576 27648 31104 32768 36864 41472 49152 55296 62208 65536 73728 82944 98304 110592 124416 131072 147456 165888 196608 221184 248832 262144 294912 331776 393216 442368 497664 524288 589824 663552 786432 884736 995328 1179648 1327104 1572864 1769472 1990656 2359296 2654208 3538944 3981312 4718592 5308416 7077888 7962624 10616832 14155776 15925248 21233664 31850496 42467328 63700992 127401984