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70670432 = 257315493
BaseRepresentation
bin1000011011001…
…01100001100000
311220222102121102
410031211201200
5121042423212
611002413532
71515455150
oct415454140
9156872542
1070670432
1136989818
121b8012a8
1311844a31
149558760
15630e5c2
hex4365860

70670432 has 24 divisors (see below), whose sum is σ = 159008976. Its totient is φ = 30287232.

The previous prime is 70670423. The next prime is 70670447. The reversal of 70670432 is 23407607.

It is a junction number, because it is equal to n+sod(n) for n = 70670395 and 70670404.

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, 157523 + ... + 157970.

It is an arithmetic number, because the mean of its divisors is an integer number (6625374).

Almost surely, 270670432 is an apocalyptic number.

It is an amenable number.

70670432 is an abundant number, since it is smaller than the sum of its proper divisors (88338544).

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

70670432 is a wasteful number, since it uses less digits than its factorization.

70670432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315510 (or 315502 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 70670432 is about 8406.5707633969. The cubic root of 70670432 is about 413.4400857344.

The spelling of 70670432 in words is "seventy million, six hundred seventy thousand, four hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 315493 630986 1261972 2208451 2523944 4416902 5047888 8833804 10095776 17667608 35335216 70670432