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70072532 = 22191675521
BaseRepresentation
bin1000010110100…
…11100011010100
311212212001102222
410023103203110
5120414310112
610541521512
71510415045
oct413234324
9155761388
1070072532
1136610592
121b573298
131169584a
1494408cc
156242372
hex42d38d4

70072532 has 24 divisors (see below), whose sum is σ = 129877440. Its totient is φ = 32987520.

The previous prime is 70072517. The next prime is 70072571. The reversal of 70072532 is 23527007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9932 + ... + 15452.

It is an arithmetic number, because the mean of its divisors is an integer number (5411560).

Almost surely, 270072532 is an apocalyptic number.

It is an amenable number.

70072532 is a deficient number, since it is larger than the sum of its proper divisors (59804908).

70072532 is a wasteful number, since it uses less digits than its factorization.

70072532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5711 (or 5709 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 70072532 is about 8370.9337591454. The cubic root of 70072532 is about 412.2708261137.

Adding to 70072532 its reverse (23527007), we get a palindrome (93599539).

The spelling of 70072532 in words is "seventy million, seventy-two thousand, five hundred thirty-two".

Divisors: 1 2 4 19 38 76 167 334 668 3173 5521 6346 11042 12692 22084 104899 209798 419596 922007 1844014 3688028 17518133 35036266 70072532