Search a number
-
+
70504448 = 21272459
BaseRepresentation
bin1000011001111…
…01000000000000
311220122222220212
410030331000000
5121022120243
610555053252
71514164220
oct414750000
9156588825
1070504448
1136886043
121b741228
13117b7311
149514080
1562ca318
hex433d000

70504448 has 52 divisors (see below), whose sum is σ = 161198880. Its totient is φ = 30203904.

The previous prime is 70504439. The next prime is 70504463. The reversal of 70504448 is 84440507.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27443 + ... + 29901.

Almost surely, 270504448 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 70504448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80599440).

70504448 is an abundant number, since it is smaller than the sum of its proper divisors (90694432).

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

70504448 is an equidigital number, since it uses as much as digits as its factorization.

70504448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490 (or 2468 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 70504448 is about 8396.6926822410. The cubic root of 70504448 is about 413.1161490532.

The spelling of 70504448 in words is "seventy million, five hundred four thousand, four hundred forty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 512 896 1024 1792 2048 2459 3584 4096 4918 7168 9836 14336 17213 19672 28672 34426 39344 68852 78688 137704 157376 275408 314752 550816 629504 1101632 1259008 2203264 2518016 4406528 5036032 8813056 10072064 17626112 35252224 70504448